diff --git a/deps/undici/src/docs/docs/api/Dispatcher.md b/deps/undici/src/docs/docs/api/Dispatcher.md
index f8639267825238..70fc5c268265c8 100644
--- a/deps/undici/src/docs/docs/api/Dispatcher.md
+++ b/deps/undici/src/docs/docs/api/Dispatcher.md
@@ -476,6 +476,7 @@ The `RequestOptions.method` property should not be value `'CONNECT'`.
 #### Parameter: `ResponseData`
 
 * **statusCode** `number`
+* **statusText** `string` - The status message from the response (e.g., "OK", "Not Found").
 * **headers** `Record<string, string | string[]>` - Note that all header keys are lower-cased, e.g. `content-type`.
 * **body** `stream.Readable` which also implements [the body mixin from the Fetch Standard](https://fetch.spec.whatwg.org/#body-mixin).
 * **trailers** `Record<string, string>` - This object starts out
@@ -517,7 +518,7 @@ await once(server, 'listening')
 const client = new Client(`http://localhost:${server.address().port}`)
 
 try {
-  const { body, headers, statusCode, trailers } = await client.request({
+  const { body, headers, statusCode, statusText, trailers } = await client.request({
     path: '/',
     method: 'GET'
   })
diff --git a/deps/undici/src/docs/docs/api/MockPool.md b/deps/undici/src/docs/docs/api/MockPool.md
index 6656b95d834c05..64a7044b8050d7 100644
--- a/deps/undici/src/docs/docs/api/MockPool.md
+++ b/deps/undici/src/docs/docs/api/MockPool.md
@@ -323,7 +323,8 @@ try {
     method: 'GET'
   })
 } catch (error) {
-  console.error(error) // Error: kaboom
+  console.error(error) // TypeError: fetch failed
+  console.error(error.cause) // Error: kaboom
 }
 ```
 
diff --git a/deps/undici/src/index-fetch.js b/deps/undici/src/index-fetch.js
index 8f5bb6ceae2ffb..0180b5865b92a7 100644
--- a/deps/undici/src/index-fetch.js
+++ b/deps/undici/src/index-fetch.js
@@ -4,11 +4,33 @@ const { getGlobalDispatcher, setGlobalDispatcher } = require('./lib/global')
 const EnvHttpProxyAgent = require('./lib/dispatcher/env-http-proxy-agent')
 const fetchImpl = require('./lib/web/fetch').fetch
 
+function appendFetchStackTrace (err, filename) {
+  if (!err || typeof err !== 'object') {
+    return
+  }
+
+  const stack = typeof err.stack === 'string' ? err.stack : ''
+  const normalizedFilename = filename.replace(/\\/g, '/')
+
+  if (stack && (stack.includes(filename) || stack.includes(normalizedFilename))) {
+    return
+  }
+
+  const capture = {}
+  Error.captureStackTrace(capture, appendFetchStackTrace)
+
+  if (!capture.stack) {
+    return
+  }
+
+  const captureLines = capture.stack.split('\n').slice(1).join('\n')
+
+  err.stack = stack ? `${stack}\n${captureLines}` : capture.stack
+}
+
 module.exports.fetch = function fetch (init, options = undefined) {
   return fetchImpl(init, options).catch(err => {
-    if (err && typeof err === 'object') {
-      Error.captureStackTrace(err)
-    }
+    appendFetchStackTrace(err, __filename)
     throw err
   })
 }
diff --git a/deps/undici/src/index.js b/deps/undici/src/index.js
index 14f439a2334707..0dc12d62ecdd06 100644
--- a/deps/undici/src/index.js
+++ b/deps/undici/src/index.js
@@ -121,11 +121,33 @@ module.exports.getGlobalDispatcher = getGlobalDispatcher
 
 const fetchImpl = require('./lib/web/fetch').fetch
 
+function appendFetchStackTrace (err, filename) {
+  if (!err || typeof err !== 'object') {
+    return
+  }
+
+  const stack = typeof err.stack === 'string' ? err.stack : ''
+  const normalizedFilename = filename.replace(/\\/g, '/')
+
+  if (stack && (stack.includes(filename) || stack.includes(normalizedFilename))) {
+    return
+  }
+
+  const capture = {}
+  Error.captureStackTrace(capture, appendFetchStackTrace)
+
+  if (!capture.stack) {
+    return
+  }
+
+  const captureLines = capture.stack.split('\n').slice(1).join('\n')
+
+  err.stack = stack ? `${stack}\n${captureLines}` : capture.stack
+}
+
 module.exports.fetch = function fetch (init, options = undefined) {
   return fetchImpl(init, options).catch(err => {
-    if (err && typeof err === 'object') {
-      Error.captureStackTrace(err)
-    }
+    appendFetchStackTrace(err, __filename)
     throw err
   })
 }
diff --git a/deps/undici/src/lib/api/api-request.js b/deps/undici/src/lib/api/api-request.js
index c3461b23c84b42..f6d15f75b0ecaa 100644
--- a/deps/undici/src/lib/api/api-request.js
+++ b/deps/undici/src/lib/api/api-request.js
@@ -121,6 +121,7 @@ class RequestHandler extends AsyncResource {
       try {
         this.runInAsyncScope(callback, null, null, {
           statusCode,
+          statusText: statusMessage,
           headers,
           trailers: this.trailers,
           opaque,
diff --git a/deps/undici/src/lib/dispatcher/client-h1.js b/deps/undici/src/lib/dispatcher/client-h1.js
index 09d1a7599c4e04..ce6b4eedbd336d 100644
--- a/deps/undici/src/lib/dispatcher/client-h1.js
+++ b/deps/undici/src/lib/dispatcher/client-h1.js
@@ -735,8 +735,13 @@ class Parser {
   }
 }
 
-function onParserTimeout (parser) {
-  const { socket, timeoutType, client, paused } = parser.deref()
+function onParserTimeout (parserWeakRef) {
+  const parser = parserWeakRef.deref()
+  if (!parser) {
+    return
+  }
+
+  const { socket, timeoutType, client, paused } = parser
 
   if (timeoutType === TIMEOUT_HEADERS) {
     if (!socket[kWriting] || socket.writableNeedDrain || client[kRunning] > 1) {
diff --git a/deps/undici/src/lib/llhttp/wasm_build_env.txt b/deps/undici/src/lib/llhttp/wasm_build_env.txt
index 96c7c9c0dbb124..e67ccb58909c7d 100644
--- a/deps/undici/src/lib/llhttp/wasm_build_env.txt
+++ b/deps/undici/src/lib/llhttp/wasm_build_env.txt
@@ -1,5 +1,5 @@
 
-> undici@7.19.2 build:wasm
+> undici@7.20.0 build:wasm
 > node build/wasm.js --docker
 
 > docker run --rm --platform=linux/x86_64  --user 1001:1001 --mount type=bind,source=/home/runner/work/node/node/deps/undici/src/lib/llhttp,target=/home/node/build/lib/llhttp            --mount type=bind,source=/home/runner/work/node/node/deps/undici/src/build,target=/home/node/build/build            --mount type=bind,source=/home/runner/work/node/node/deps/undici/src/deps,target=/home/node/build/deps            -t ghcr.io/nodejs/wasm-builder@sha256:975f391d907e42a75b8c72eb77c782181e941608687d4d8694c3e9df415a0970 node build/wasm.js
diff --git a/deps/undici/src/lib/mock/mock-utils.js b/deps/undici/src/lib/mock/mock-utils.js
index e1e3f04064305c..291a85753be4e7 100644
--- a/deps/undici/src/lib/mock/mock-utils.js
+++ b/deps/undici/src/lib/mock/mock-utils.js
@@ -312,9 +312,33 @@ function mockDispatch (opts, handler) {
     return true
   }
 
+  // Track whether the request has been aborted
+  let aborted = false
+  let timer = null
+
+  function abort (err) {
+    if (aborted) {
+      return
+    }
+    aborted = true
+
+    // Clear the pending delayed response if any
+    if (timer !== null) {
+      clearTimeout(timer)
+      timer = null
+    }
+
+    // Notify the handler of the abort
+    handler.onError(err)
+  }
+
+  // Call onConnect to allow the handler to register the abort callback
+  handler.onConnect?.(abort, null)
+
   // Handle the request with a delay if necessary
   if (typeof delay === 'number' && delay > 0) {
-    setTimeout(() => {
+    timer = setTimeout(() => {
+      timer = null
       handleReply(this[kDispatches])
     }, delay)
   } else {
@@ -322,6 +346,11 @@ function mockDispatch (opts, handler) {
   }
 
   function handleReply (mockDispatches, _data = data) {
+    // Don't send response if the request was aborted
+    if (aborted) {
+      return
+    }
+
     // fetch's HeadersList is a 1D string array
     const optsHeaders = Array.isArray(opts.headers)
       ? buildHeadersFromArray(opts.headers)
@@ -340,11 +369,15 @@ function mockDispatch (opts, handler) {
       return body.then((newData) => handleReply(mockDispatches, newData))
     }
 
+    // Check again if aborted after async body resolution
+    if (aborted) {
+      return
+    }
+
     const responseData = getResponseData(body)
     const responseHeaders = generateKeyValues(headers)
     const responseTrailers = generateKeyValues(trailers)
 
-    handler.onConnect?.(err => handler.onError(err), null)
     handler.onHeaders?.(statusCode, responseHeaders, resume, getStatusText(statusCode))
     handler.onData?.(Buffer.from(responseData))
     handler.onComplete?.(responseTrailers)
diff --git a/deps/undici/src/lib/web/fetch/body.js b/deps/undici/src/lib/web/fetch/body.js
index 619bc783a4cd85..3d2d848656a442 100644
--- a/deps/undici/src/lib/web/fetch/body.js
+++ b/deps/undici/src/lib/web/fetch/body.js
@@ -11,7 +11,7 @@ const { FormData, setFormDataState } = require('./formdata')
 const { webidl } = require('../webidl')
 const assert = require('node:assert')
 const { isErrored, isDisturbed } = require('node:stream')
-const { isArrayBuffer } = require('node:util/types')
+const { isUint8Array } = require('node:util/types')
 const { serializeAMimeType } = require('./data-url')
 const { multipartFormDataParser } = require('./formdata-parser')
 const { createDeferredPromise } = require('../../util/promise')
@@ -45,6 +45,7 @@ const streamRegistry = new FinalizationRegistry((weakRef) => {
 function extractBody (object, keepalive = false) {
   // 1. Let stream be null.
   let stream = null
+  let controller = null
 
   // 2. If object is a ReadableStream object, then set stream to object.
   if (webidl.is.ReadableStream(object)) {
@@ -57,16 +58,11 @@ function extractBody (object, keepalive = false) {
     // 4. Otherwise, set stream to a new ReadableStream object, and set
     //    up stream with byte reading support.
     stream = new ReadableStream({
-      pull (controller) {
-        const buffer = typeof source === 'string' ? textEncoder.encode(source) : source
-
-        if (buffer.byteLength) {
-          controller.enqueue(buffer)
-        }
-
-        queueMicrotask(() => readableStreamClose(controller))
+      pull () {},
+      start (c) {
+        controller = c
       },
-      start () {},
+      cancel () {},
       type: 'bytes'
     })
   }
@@ -108,9 +104,8 @@ function extractBody (object, keepalive = false) {
     // Set type to `application/x-www-form-urlencoded;charset=UTF-8`.
     type = 'application/x-www-form-urlencoded;charset=UTF-8'
   } else if (webidl.is.BufferSource(object)) {
-    source = isArrayBuffer(object)
-      ? new Uint8Array(object.slice())
-      : new Uint8Array(object.buffer.slice(object.byteOffset, object.byteOffset + object.byteLength))
+    // Set source to a copy of the bytes held by object.
+    source = webidl.util.getCopyOfBytesHeldByBufferSource(object)
   } else if (webidl.is.FormData(object)) {
     const boundary = `----formdata-undici-0${`${random(1e11)}`.padStart(11, '0')}`
     const prefix = `--${boundary}\r\nContent-Disposition: form-data`
@@ -213,45 +208,36 @@ function extractBody (object, keepalive = false) {
 
   // 11. If source is a byte sequence, then set action to a
   // step that returns source and length to source’s length.
-  if (typeof source === 'string' || util.isBuffer(source)) {
-    length = Buffer.byteLength(source)
+  if (typeof source === 'string' || isUint8Array(source)) {
+    action = () => {
+      length = typeof source === 'string' ? Buffer.byteLength(source) : source.length
+      return source
+    }
   }
 
-  // 12. If action is non-null, then run these steps in in parallel:
+  // 12. If action is non-null, then run these steps in parallel:
   if (action != null) {
-    // Run action.
-    let iterator
-    stream = new ReadableStream({
-      start () {
-        iterator = action(object)[Symbol.asyncIterator]()
-      },
-      pull (controller) {
-        return iterator.next().then(({ value, done }) => {
-          if (done) {
-            // When running action is done, close stream.
-            queueMicrotask(() => {
-              controller.close()
-              controller.byobRequest?.respond(0)
-            })
-          } else {
-            // Whenever one or more bytes are available and stream is not errored,
-            // enqueue a Uint8Array wrapping an ArrayBuffer containing the available
-            // bytes into stream.
-            if (!isErrored(stream)) {
-              const buffer = new Uint8Array(value)
-              if (buffer.byteLength) {
-                controller.enqueue(buffer)
-              }
-            }
+    ;(async () => {
+      // 1. Run action.
+      const result = action()
+
+      // 2. Whenever one or more bytes are available and stream is not errored,
+      //    enqueue the result of creating a Uint8Array from the available bytes into stream.
+      const iterator = result?.[Symbol.asyncIterator]?.()
+      if (iterator) {
+        for await (const bytes of iterator) {
+          if (isErrored(stream)) break
+          if (bytes.length) {
+            controller.enqueue(new Uint8Array(bytes))
           }
-          return controller.desiredSize > 0
-        })
-      },
-      cancel (reason) {
-        return iterator.return()
-      },
-      type: 'bytes'
-    })
+        }
+      } else if (result?.length && !isErrored(stream)) {
+        controller.enqueue(typeof result === 'string' ? textEncoder.encode(result) : new Uint8Array(result))
+      }
+
+      // 3. When running action is done, close stream.
+      queueMicrotask(() => readableStreamClose(controller))
+    })()
   }
 
   // 13. Let body be a body whose stream is stream, source is source,
diff --git a/deps/undici/src/lib/web/fetch/index.js b/deps/undici/src/lib/web/fetch/index.js
index bb33e8d77e8e11..8224e1b4ff7c15 100644
--- a/deps/undici/src/lib/web/fetch/index.js
+++ b/deps/undici/src/lib/web/fetch/index.js
@@ -1321,8 +1321,8 @@ function httpRedirectFetch (fetchParams, response) {
     request.headersList.delete('host', true)
   }
 
-  // 14. If request’s body is non-null, then set request’s body to the first return
-  // value of safely extracting request’s body’s source.
+  // 14. If request's body is non-null, then set request's body to the first return
+  // value of safely extracting request's body's source.
   if (request.body != null) {
     assert(request.body.source != null)
     request.body = safelyExtractBody(request.body.source)[0]
diff --git a/deps/undici/src/lib/web/webidl/index.js b/deps/undici/src/lib/web/webidl/index.js
index 542571559739de..c7834328f87223 100644
--- a/deps/undici/src/lib/web/webidl/index.js
+++ b/deps/undici/src/lib/web/webidl/index.js
@@ -1,5 +1,6 @@
 'use strict'
 
+const assert = require('node:assert')
 const { types, inspect } = require('node:util')
 const { runtimeFeatures } = require('../../util/runtime-features')
 
@@ -542,6 +543,57 @@ webidl.is.BufferSource = function (V) {
   )
 }
 
+// https://webidl.spec.whatwg.org/#dfn-get-buffer-source-copy
+webidl.util.getCopyOfBytesHeldByBufferSource = function (bufferSource) {
+  // 1. Let jsBufferSource be the result of converting bufferSource to a JavaScript value.
+  const jsBufferSource = bufferSource
+
+  // 2. Let jsArrayBuffer be jsBufferSource.
+  let jsArrayBuffer = jsBufferSource
+
+  // 3. Let offset be 0.
+  let offset = 0
+
+  // 4. Let length be 0.
+  let length = 0
+
+  // 5. If jsBufferSource has a [[ViewedArrayBuffer]] internal slot, then:
+  if (types.isTypedArray(jsBufferSource) || types.isDataView(jsBufferSource)) {
+    // 5.1. Set jsArrayBuffer to jsBufferSource.[[ViewedArrayBuffer]].
+    jsArrayBuffer = jsBufferSource.buffer
+
+    // 5.2. Set offset to jsBufferSource.[[ByteOffset]].
+    offset = jsBufferSource.byteOffset
+
+    // 5.3. Set length to jsBufferSource.[[ByteLength]].
+    length = jsBufferSource.byteLength
+  } else {
+    // 6. Otherwise:
+
+    // 6.1. Assert: jsBufferSource is an ArrayBuffer or SharedArrayBuffer object.
+    assert(types.isAnyArrayBuffer(jsBufferSource))
+
+    // 6.2. Set length to jsBufferSource.[[ArrayBufferByteLength]].
+    length = jsBufferSource.byteLength
+  }
+
+  // 7. If IsDetachedBuffer(jsArrayBuffer) is true, then return the empty byte sequence.
+  if (jsArrayBuffer.detached) {
+    return new Uint8Array(0)
+  }
+
+  // 8. Let bytes be a new byte sequence of length equal to length.
+  const bytes = new Uint8Array(length)
+
+  // 9. For i in the range offset to offset + length − 1, inclusive,
+  //    set bytes[i − offset] to GetValueFromBuffer(jsArrayBuffer, i, Uint8, true, Unordered).
+  const view = new Uint8Array(jsArrayBuffer, offset, length)
+  bytes.set(view)
+
+  // 10. Return bytes.
+  return bytes
+}
+
 // https://webidl.spec.whatwg.org/#es-DOMString
 webidl.converters.DOMString = function (V, prefix, argument, flags) {
   // 1. If V is null and the conversion is to an IDL type
diff --git a/deps/undici/src/package-lock.json b/deps/undici/src/package-lock.json
index 60330a63604a0a..77d16edff05ed2 100644
--- a/deps/undici/src/package-lock.json
+++ b/deps/undici/src/package-lock.json
@@ -1,12 +1,12 @@
 {
   "name": "undici",
-  "version": "7.19.2",
+  "version": "7.20.0",
   "lockfileVersion": 3,
   "requires": true,
   "packages": {
     "": {
       "name": "undici",
-      "version": "7.19.2",
+      "version": "7.20.0",
       "license": "MIT",
       "devDependencies": {
         "@fastify/busboy": "3.2.0",
@@ -76,9 +76,9 @@
       "license": "MIT"
     },
     "node_modules/@babel/code-frame": {
-      "version": "7.28.6",
-      "resolved": "https://registry.npmjs.org/@babel/code-frame/-/code-frame-7.28.6.tgz",
-      "integrity": "sha512-JYgintcMjRiCvS8mMECzaEn+m3PfoQiyqukOMCCVQtoJGYJw8j/8LBJEiqkHLkfwCcs74E3pbAUFNg7d9VNJ+Q==",
+      "version": "7.29.0",
+      "resolved": "https://registry.npmjs.org/@babel/code-frame/-/code-frame-7.29.0.tgz",
+      "integrity": "sha512-9NhCeYjq9+3uxgdtp20LSiJXJvN0FeCtNGpJxuMFZ1Kv3cWUNb6DOhJwUvcVCzKGR66cw4njwM6hrJLqgOwbcw==",
       "dev": true,
       "license": "MIT",
       "dependencies": {
@@ -91,9 +91,9 @@
       }
     },
     "node_modules/@babel/compat-data": {
-      "version": "7.28.6",
-      "resolved": "https://registry.npmjs.org/@babel/compat-data/-/compat-data-7.28.6.tgz",
-      "integrity": "sha512-2lfu57JtzctfIrcGMz992hyLlByuzgIk58+hhGCxjKZ3rWI82NnVLjXcaTqkI2NvlcvOskZaiZ5kjUALo3Lpxg==",
+      "version": "7.29.0",
+      "resolved": "https://registry.npmjs.org/@babel/compat-data/-/compat-data-7.29.0.tgz",
+      "integrity": "sha512-T1NCJqT/j9+cn8fvkt7jtwbLBfLC/1y1c7NtCeXFRgzGTsafi68MRv8yzkYSapBnFA6L3U2VSc02ciDzoAJhJg==",
       "dev": true,
       "license": "MIT",
       "engines": {
@@ -101,21 +101,21 @@
       }
     },
     "node_modules/@babel/core": {
-      "version": "7.28.6",
-      "resolved": "https://registry.npmjs.org/@babel/core/-/core-7.28.6.tgz",
-      "integrity": "sha512-H3mcG6ZDLTlYfaSNi0iOKkigqMFvkTKlGUYlD8GW7nNOYRrevuA46iTypPyv+06V3fEmvvazfntkBU34L0azAw==",
+      "version": "7.29.0",
+      "resolved": "https://registry.npmjs.org/@babel/core/-/core-7.29.0.tgz",
+      "integrity": "sha512-CGOfOJqWjg2qW/Mb6zNsDm+u5vFQ8DxXfbM09z69p5Z6+mE1ikP2jUXw+j42Pf1XTYED2Rni5f95npYeuwMDQA==",
       "dev": true,
       "license": "MIT",
       "dependencies": {
-        "@babel/code-frame": "^7.28.6",
-        "@babel/generator": "^7.28.6",
+        "@babel/code-frame": "^7.29.0",
+        "@babel/generator": "^7.29.0",
         "@babel/helper-compilation-targets": "^7.28.6",
         "@babel/helper-module-transforms": "^7.28.6",
         "@babel/helpers": "^7.28.6",
-        "@babel/parser": "^7.28.6",
+        "@babel/parser": "^7.29.0",
         "@babel/template": "^7.28.6",
-        "@babel/traverse": "^7.28.6",
-        "@babel/types": "^7.28.6",
+        "@babel/traverse": "^7.29.0",
+        "@babel/types": "^7.29.0",
         "@jridgewell/remapping": "^2.3.5",
         "convert-source-map": "^2.0.0",
         "debug": "^4.1.0",
@@ -132,14 +132,14 @@
       }
     },
     "node_modules/@babel/generator": {
-      "version": "7.28.6",
-      "resolved": "https://registry.npmjs.org/@babel/generator/-/generator-7.28.6.tgz",
-      "integrity": "sha512-lOoVRwADj8hjf7al89tvQ2a1lf53Z+7tiXMgpZJL3maQPDxh0DgLMN62B2MKUOFcoodBHLMbDM6WAbKgNy5Suw==",
+      "version": "7.29.1",
+      "resolved": "https://registry.npmjs.org/@babel/generator/-/generator-7.29.1.tgz",
+      "integrity": "sha512-qsaF+9Qcm2Qv8SRIMMscAvG4O3lJ0F1GuMo5HR/Bp02LopNgnZBC/EkbevHFeGs4ls/oPz9v+Bsmzbkbe+0dUw==",
       "dev": true,
       "license": "MIT",
       "dependencies": {
-        "@babel/parser": "^7.28.6",
-        "@babel/types": "^7.28.6",
+        "@babel/parser": "^7.29.0",
+        "@babel/types": "^7.29.0",
         "@jridgewell/gen-mapping": "^0.3.12",
         "@jridgewell/trace-mapping": "^0.3.28",
         "jsesc": "^3.0.2"
@@ -262,13 +262,13 @@
       }
     },
     "node_modules/@babel/parser": {
-      "version": "7.28.6",
-      "resolved": "https://registry.npmjs.org/@babel/parser/-/parser-7.28.6.tgz",
-      "integrity": "sha512-TeR9zWR18BvbfPmGbLampPMW+uW1NZnJlRuuHso8i87QZNq2JRF9i6RgxRqtEq+wQGsS19NNTWr2duhnE49mfQ==",
+      "version": "7.29.0",
+      "resolved": "https://registry.npmjs.org/@babel/parser/-/parser-7.29.0.tgz",
+      "integrity": "sha512-IyDgFV5GeDUVX4YdF/3CPULtVGSXXMLh1xVIgdCgxApktqnQV0r7/8Nqthg+8YLGaAtdyIlo2qIdZrbCv4+7ww==",
       "dev": true,
       "license": "MIT",
       "dependencies": {
-        "@babel/types": "^7.28.6"
+        "@babel/types": "^7.29.0"
       },
       "bin": {
         "parser": "bin/babel-parser.js"
@@ -532,18 +532,18 @@
       }
     },
     "node_modules/@babel/traverse": {
-      "version": "7.28.6",
-      "resolved": "https://registry.npmjs.org/@babel/traverse/-/traverse-7.28.6.tgz",
-      "integrity": "sha512-fgWX62k02qtjqdSNTAGxmKYY/7FSL9WAS1o2Hu5+I5m9T0yxZzr4cnrfXQ/MX0rIifthCSs6FKTlzYbJcPtMNg==",
+      "version": "7.29.0",
+      "resolved": "https://registry.npmjs.org/@babel/traverse/-/traverse-7.29.0.tgz",
+      "integrity": "sha512-4HPiQr0X7+waHfyXPZpWPfWL/J7dcN1mx9gL6WdQVMbPnF3+ZhSMs8tCxN7oHddJE9fhNE7+lxdnlyemKfJRuA==",
       "dev": true,
       "license": "MIT",
       "dependencies": {
-        "@babel/code-frame": "^7.28.6",
-        "@babel/generator": "^7.28.6",
+        "@babel/code-frame": "^7.29.0",
+        "@babel/generator": "^7.29.0",
         "@babel/helper-globals": "^7.28.0",
-        "@babel/parser": "^7.28.6",
+        "@babel/parser": "^7.29.0",
         "@babel/template": "^7.28.6",
-        "@babel/types": "^7.28.6",
+        "@babel/types": "^7.29.0",
         "debug": "^4.3.1"
       },
       "engines": {
@@ -551,9 +551,9 @@
       }
     },
     "node_modules/@babel/types": {
-      "version": "7.28.6",
-      "resolved": "https://registry.npmjs.org/@babel/types/-/types-7.28.6.tgz",
-      "integrity": "sha512-0ZrskXVEHSWIqZM/sQZ4EV3jZJXRkio/WCxaqKZP1g//CEWEPSfeZFcms4XeKBCHU0ZKnIkdJeU/kF+eRp5lBg==",
+      "version": "7.29.0",
+      "resolved": "https://registry.npmjs.org/@babel/types/-/types-7.29.0.tgz",
+      "integrity": "sha512-LwdZHpScM4Qz8Xw2iKSzS+cfglZzJGvofQICy7W7v4caru4EaAmyUuO6BGrbyQ2mYV11W0U8j5mBhd14dd3B0A==",
       "dev": true,
       "license": "MIT",
       "dependencies": {
@@ -1289,9 +1289,9 @@
       }
     },
     "node_modules/@isaacs/brace-expansion": {
-      "version": "5.0.0",
-      "resolved": "https://registry.npmjs.org/@isaacs/brace-expansion/-/brace-expansion-5.0.0.tgz",
-      "integrity": "sha512-ZT55BDLV0yv0RBm2czMiZ+SqCGO7AvmOM3G/w2xhVPH+te0aKgFjmBvGlL1dH+ql2tgGO3MVrbb3jCKyvpgnxA==",
+      "version": "5.0.1",
+      "resolved": "https://registry.npmjs.org/@isaacs/brace-expansion/-/brace-expansion-5.0.1.tgz",
+      "integrity": "sha512-WMz71T1JS624nWj2n2fnYAuPovhv7EUhk69R6i9dsVyzxt5eM3bjwvgk9L+APE1TRscGysAVMANkB0jh0LQZrQ==",
       "dev": true,
       "license": "MIT",
       "dependencies": {
@@ -2185,9 +2185,9 @@
       "license": "MIT"
     },
     "node_modules/@types/node": {
-      "version": "20.19.30",
-      "resolved": "https://registry.npmjs.org/@types/node/-/node-20.19.30.tgz",
-      "integrity": "sha512-WJtwWJu7UdlvzEAUm484QNg5eAoq5QR08KDNx7g45Usrs2NtOPiX8ugDqmKdXkyL03rBqU5dYNYVQetEpBHq2g==",
+      "version": "20.19.31",
+      "resolved": "https://registry.npmjs.org/@types/node/-/node-20.19.31.tgz",
+      "integrity": "sha512-5jsi0wpncvTD33Sh1UCgacK37FFwDn+EG7wCmEvs62fCvBL+n8/76cAYDok21NF6+jaVWIqKwCZyX7Vbu8eB3A==",
       "dev": true,
       "license": "MIT",
       "dependencies": {
@@ -3233,7 +3233,7 @@
       "version": "7.2.3",
       "resolved": "https://registry.npmjs.org/glob/-/glob-7.2.3.tgz",
       "integrity": "sha512-nFR0zLpU2YCaRxwoCJvL6UvCH2JFyFVIvwTLsIf21AuHlMskA1hhTdk+LlYJtOlYt9v6dvszD2BGRqBL+iQK9Q==",
-      "deprecated": "Glob versions prior to v9 are no longer supported",
+      "deprecated": "Old versions of glob are not supported, and contain widely publicized security vulnerabilities, which have been fixed in the current version. Please update. Support for old versions may be purchased (at exorbitant rates) by contacting i@izs.me",
       "dev": true,
       "license": "ISC",
       "dependencies": {
@@ -3621,9 +3621,9 @@
       }
     },
     "node_modules/caniuse-lite": {
-      "version": "1.0.30001766",
-      "resolved": "https://registry.npmjs.org/caniuse-lite/-/caniuse-lite-1.0.30001766.tgz",
-      "integrity": "sha512-4C0lfJ0/YPjJQHagaE9x2Elb69CIqEPZeG0anQt9SIvIoOH4a4uaRl73IavyO+0qZh6MDLH//DrXThEYKHkmYA==",
+      "version": "1.0.30001767",
+      "resolved": "https://registry.npmjs.org/caniuse-lite/-/caniuse-lite-1.0.30001767.tgz",
+      "integrity": "sha512-34+zUAMhSH+r+9eKmYG+k2Rpt8XttfE4yXAjoZvkAPs15xcYQhyBYdalJ65BzivAvGRMViEjy6oKr/S91loekQ==",
       "dev": true,
       "funding": [
         {
@@ -3669,9 +3669,9 @@
       }
     },
     "node_modules/ci-info": {
-      "version": "4.3.1",
-      "resolved": "https://registry.npmjs.org/ci-info/-/ci-info-4.3.1.tgz",
-      "integrity": "sha512-Wdy2Igu8OcBpI2pZePZ5oWjPC38tmDVx5WKUXKwlLYkA0ozo85sLsLvkBbBn/sZaSCMFOGZJ14fvW9t5/d7kdA==",
+      "version": "4.4.0",
+      "resolved": "https://registry.npmjs.org/ci-info/-/ci-info-4.4.0.tgz",
+      "integrity": "sha512-77PSwercCZU2Fc4sX94eF8k8Pxte6JAwL4/ICZLFjJLqegs7kCuAsqqj/70NQF6TvDpgFjkubQB2FW2ZZddvQg==",
       "dev": true,
       "funding": [
         {
@@ -4123,9 +4123,9 @@
       "license": "MIT"
     },
     "node_modules/electron-to-chromium": {
-      "version": "1.5.279",
-      "resolved": "https://registry.npmjs.org/electron-to-chromium/-/electron-to-chromium-1.5.279.tgz",
-      "integrity": "sha512-0bblUU5UNdOt5G7XqGiJtpZMONma6WAfq9vsFmtn9x1+joAObr6x1chfqyxFSDCAFwFhCQDrqeAr6MYdpwJ9Hg==",
+      "version": "1.5.286",
+      "resolved": "https://registry.npmjs.org/electron-to-chromium/-/electron-to-chromium-1.5.286.tgz",
+      "integrity": "sha512-9tfDXhJ4RKFNerfjdCcZfufu49vg620741MNs26a9+bhLThdB+plgMeou98CAaHu/WATj2iHOOHTp1hWtABj2A==",
       "dev": true,
       "license": "ISC"
     },
@@ -4150,14 +4150,14 @@
       "license": "MIT"
     },
     "node_modules/enhanced-resolve": {
-      "version": "5.18.4",
-      "resolved": "https://registry.npmjs.org/enhanced-resolve/-/enhanced-resolve-5.18.4.tgz",
-      "integrity": "sha512-LgQMM4WXU3QI+SYgEc2liRgznaD5ojbmY3sb8LxyguVkIg5FxdpTkvk72te2R38/TGKxH634oLxXRGY6d7AP+Q==",
+      "version": "5.19.0",
+      "resolved": "https://registry.npmjs.org/enhanced-resolve/-/enhanced-resolve-5.19.0.tgz",
+      "integrity": "sha512-phv3E1Xl4tQOShqSte26C7Fl84EwUdZsyOuSSk9qtAGyyQs2s3jJzComh+Abf4g187lUUAvH+H26omrqia2aGg==",
       "dev": true,
       "license": "MIT",
       "dependencies": {
         "graceful-fs": "^4.2.4",
-        "tapable": "^2.2.0"
+        "tapable": "^2.3.0"
       },
       "engines": {
         "node": ">=10.13.0"
@@ -4692,13 +4692,13 @@
       }
     },
     "node_modules/eslint-plugin-import-x/node_modules/minimatch": {
-      "version": "10.1.1",
-      "resolved": "https://registry.npmjs.org/minimatch/-/minimatch-10.1.1.tgz",
-      "integrity": "sha512-enIvLvRAFZYXJzkCYG5RKmPfrFArdLv+R+lbQ53BmIMLIry74bjKzX6iHAm8WYamJkhSSEabrWN5D97XnKObjQ==",
+      "version": "10.1.2",
+      "resolved": "https://registry.npmjs.org/minimatch/-/minimatch-10.1.2.tgz",
+      "integrity": "sha512-fu656aJ0n2kcXwsnwnv9g24tkU5uSmOlTjd6WyyaKm2Z+h1qmY6bAjrcaIxF/BslFqbZ8UBtbJi7KgQOZD2PTw==",
       "dev": true,
       "license": "BlueOak-1.0.0",
       "dependencies": {
-        "@isaacs/brace-expansion": "^5.0.0"
+        "@isaacs/brace-expansion": "^5.0.1"
       },
       "engines": {
         "node": "20 || >=22"
@@ -5450,9 +5450,9 @@
       }
     },
     "node_modules/get-tsconfig": {
-      "version": "4.13.0",
-      "resolved": "https://registry.npmjs.org/get-tsconfig/-/get-tsconfig-4.13.0.tgz",
-      "integrity": "sha512-1VKTZJCwBrvbd+Wn3AOgQP/2Av+TfTCOlE4AcRJE72W1ksZXbAx8PPBR9RzgTeSPzlPMHrbANMH3LbltH73wxQ==",
+      "version": "4.13.1",
+      "resolved": "https://registry.npmjs.org/get-tsconfig/-/get-tsconfig-4.13.1.tgz",
+      "integrity": "sha512-EoY1N2xCn44xU6750Sx7OjOIT59FkmstNc3X6y5xpz7D5cBtZRe/3pSlTkDJgqsOk3WwZPkWfonhhUJfttQo3w==",
       "dev": true,
       "license": "MIT",
       "dependencies": {
@@ -5466,6 +5466,7 @@
       "version": "10.5.0",
       "resolved": "https://registry.npmjs.org/glob/-/glob-10.5.0.tgz",
       "integrity": "sha512-DfXN8DfhJ7NH3Oe7cFmu3NCu1wKbkReJ8TorzSAFbSKrlNaQSKfIzqYqVY8zlbs2NLBbWpRiU52GX2PbaBVNkg==",
+      "deprecated": "Old versions of glob are not supported, and contain widely publicized security vulnerabilities, which have been fixed in the current version. Please update. Support for old versions may be purchased (at exorbitant rates) by contacting i@izs.me",
       "dev": true,
       "license": "ISC",
       "dependencies": {
@@ -9820,9 +9821,9 @@
       }
     },
     "node_modules/tsd/node_modules/@sinclair/typebox": {
-      "version": "0.27.8",
-      "resolved": "https://registry.npmjs.org/@sinclair/typebox/-/typebox-0.27.8.tgz",
-      "integrity": "sha512-+Fj43pSMwJs4KRrH/938Uf+uAELIgVBmQzg/q1YG10djyfA3TnrU8N8XzqCh/okZdszqBQTZf96idMfE5lnwTA==",
+      "version": "0.27.10",
+      "resolved": "https://registry.npmjs.org/@sinclair/typebox/-/typebox-0.27.10.tgz",
+      "integrity": "sha512-MTBk/3jGLNB2tVxv6uLlFh1iu64iYOQ2PbdOSK3NW8JZsmlaOh2q6sdtKowBhfw8QFLmYNzTW4/oK4uATIi6ZA==",
       "dev": true,
       "license": "MIT"
     },
diff --git a/deps/undici/src/package.json b/deps/undici/src/package.json
index bdfe7896b191a6..f6d2f04a2472b5 100644
--- a/deps/undici/src/package.json
+++ b/deps/undici/src/package.json
@@ -1,6 +1,6 @@
 {
   "name": "undici",
-  "version": "7.19.2",
+  "version": "7.20.0",
   "description": "An HTTP/1.1 client, written from scratch for Node.js",
   "homepage": "https://undici.nodejs.org",
   "bugs": {
diff --git a/deps/undici/src/types/dispatcher.d.ts b/deps/undici/src/types/dispatcher.d.ts
index 13b33ececc8412..684ca439c9a3ff 100644
--- a/deps/undici/src/types/dispatcher.d.ts
+++ b/deps/undici/src/types/dispatcher.d.ts
@@ -181,6 +181,7 @@ declare namespace Dispatcher {
   }
   export interface ResponseData<TOpaque = null> {
     statusCode: number;
+    statusText: string;
     headers: IncomingHttpHeaders;
     body: BodyReadable & BodyMixin;
     trailers: Record<string, string>;
diff --git a/deps/undici/src/types/webidl.d.ts b/deps/undici/src/types/webidl.d.ts
index d2a8eb9c39a93d..f95d9b567378c1 100644
--- a/deps/undici/src/types/webidl.d.ts
+++ b/deps/undici/src/types/webidl.d.ts
@@ -1,4 +1,5 @@
 // These types are not exported, and are only used internally
+import { BufferSource } from 'node:stream/web'
 import * as undici from './index'
 
 /**
@@ -93,6 +94,11 @@ interface WebidlUtil {
   IsResizableArrayBuffer (V: ArrayBufferLike): boolean
 
   HasFlag (flag: number, attributes: number): boolean
+
+  /**
+   * @see https://webidl.spec.whatwg.org/#dfn-get-buffer-source-copy
+   */
+  getCopyOfBytesHeldByBufferSource (bufferSource: BufferSource): Uint8Array
 }
 
 interface WebidlConverters {
diff --git a/deps/undici/undici.js b/deps/undici/undici.js
index 8ea790e4860045..f11ec6e9d19aa9 100644
--- a/deps/undici/undici.js
+++ b/deps/undici/undici.js
@@ -4691,6 +4691,7 @@ var require_runtime_features = __commonJS({
 var require_webidl = __commonJS({
   "lib/web/webidl/index.js"(exports2, module2) {
     "use strict";
+    var assert = require("node:assert");
     var { types, inspect } = require("node:util");
     var { runtimeFeatures } = require_runtime_features();
     var UNDEFINED = 1;
@@ -5035,6 +5036,27 @@ var require_webidl = __commonJS({
     webidl.is.BufferSource = function(V) {
       return types.isArrayBuffer(V) || ArrayBuffer.isView(V) && types.isArrayBuffer(V.buffer);
     };
+    webidl.util.getCopyOfBytesHeldByBufferSource = function(bufferSource) {
+      const jsBufferSource = bufferSource;
+      let jsArrayBuffer = jsBufferSource;
+      let offset = 0;
+      let length = 0;
+      if (types.isTypedArray(jsBufferSource) || types.isDataView(jsBufferSource)) {
+        jsArrayBuffer = jsBufferSource.buffer;
+        offset = jsBufferSource.byteOffset;
+        length = jsBufferSource.byteLength;
+      } else {
+        assert(types.isAnyArrayBuffer(jsBufferSource));
+        length = jsBufferSource.byteLength;
+      }
+      if (jsArrayBuffer.detached) {
+        return new Uint8Array(0);
+      }
+      const bytes = new Uint8Array(length);
+      const view = new Uint8Array(jsArrayBuffer, offset, length);
+      bytes.set(view);
+      return bytes;
+    };
     webidl.converters.DOMString = function(V, prefix, argument, flags) {
       if (V === null && webidl.util.HasFlag(flags, webidl.attributes.LegacyNullToEmptyString)) {
         return "";
@@ -6631,7 +6653,7 @@ var require_body = __commonJS({
     var { webidl } = require_webidl();
     var assert = require("node:assert");
     var { isErrored, isDisturbed } = require("node:stream");
-    var { isArrayBuffer } = require("node:util/types");
+    var { isUint8Array } = require("node:util/types");
     var { serializeAMimeType } = require_data_url();
     var { multipartFormDataParser } = require_formdata_parser();
     var { createDeferredPromise } = require_promise();
@@ -6651,20 +6673,19 @@ var require_body = __commonJS({
     });
     function extractBody(object, keepalive = false) {
       let stream = null;
+      let controller = null;
       if (webidl.is.ReadableStream(object)) {
         stream = object;
       } else if (webidl.is.Blob(object)) {
         stream = object.stream();
       } else {
         stream = new ReadableStream({
-          pull(controller) {
-            const buffer = typeof source === "string" ? textEncoder.encode(source) : source;
-            if (buffer.byteLength) {
-              controller.enqueue(buffer);
-            }
-            queueMicrotask(() => readableStreamClose(controller));
+          pull() {
           },
-          start() {
+          start(c) {
+            controller = c;
+          },
+          cancel() {
           },
           type: "bytes"
         });
@@ -6681,7 +6702,7 @@ var require_body = __commonJS({
         source = object.toString();
         type = "application/x-www-form-urlencoded;charset=UTF-8";
       } else if (webidl.is.BufferSource(object)) {
-        source = isArrayBuffer(object) ? new Uint8Array(object.slice()) : new Uint8Array(object.buffer.slice(object.byteOffset, object.byteOffset + object.byteLength));
+        source = webidl.util.getCopyOfBytesHeldByBufferSource(object);
       } else if (webidl.is.FormData(object)) {
         const boundary = `----formdata-undici-0${`${random(1e11)}`.padStart(11, "0")}`;
         const prefix = `--${boundary}\r
@@ -6748,38 +6769,29 @@ Content-Type: ${value.type || "application/octet-stream"}\r
         }
         stream = webidl.is.ReadableStream(object) ? object : ReadableStreamFrom(object);
       }
-      if (typeof source === "string" || util.isBuffer(source)) {
-        length = Buffer.byteLength(source);
+      if (typeof source === "string" || isUint8Array(source)) {
+        action = /* @__PURE__ */ __name(() => {
+          length = typeof source === "string" ? Buffer.byteLength(source) : source.length;
+          return source;
+        }, "action");
       }
       if (action != null) {
-        let iterator;
-        stream = new ReadableStream({
-          start() {
-            iterator = action(object)[Symbol.asyncIterator]();
-          },
-          pull(controller) {
-            return iterator.next().then(({ value, done }) => {
-              if (done) {
-                queueMicrotask(() => {
-                  controller.close();
-                  controller.byobRequest?.respond(0);
-                });
-              } else {
-                if (!isErrored(stream)) {
-                  const buffer = new Uint8Array(value);
-                  if (buffer.byteLength) {
-                    controller.enqueue(buffer);
-                  }
-                }
+        ;
+        (async () => {
+          const result = action();
+          const iterator = result?.[Symbol.asyncIterator]?.();
+          if (iterator) {
+            for await (const bytes of iterator) {
+              if (isErrored(stream)) break;
+              if (bytes.length) {
+                controller.enqueue(new Uint8Array(bytes));
               }
-              return controller.desiredSize > 0;
-            });
-          },
-          cancel(reason) {
-            return iterator.return();
-          },
-          type: "bytes"
-        });
+            }
+          } else if (result?.length && !isErrored(stream)) {
+            controller.enqueue(typeof result === "string" ? textEncoder.encode(result) : new Uint8Array(result));
+          }
+          queueMicrotask(() => readableStreamClose(controller));
+        })();
       }
       const body = { stream, source, length };
       return [body, type];
@@ -7501,8 +7513,12 @@ var require_client_h1 = __commonJS({
         return 0;
       }
     };
-    function onParserTimeout(parser) {
-      const { socket, timeoutType, client, paused } = parser.deref();
+    function onParserTimeout(parserWeakRef) {
+      const parser = parserWeakRef.deref();
+      if (!parser) {
+        return;
+      }
+      const { socket, timeoutType, client, paused } = parser;
       if (timeoutType === TIMEOUT_HEADERS) {
         if (!socket[kWriting] || socket.writableNeedDrain || client[kRunning] > 1) {
           assert(!paused, "cannot be paused while waiting for headers");
@@ -15758,6 +15774,7 @@ var require_api_request = __commonJS({
           try {
             this.runInAsyncScope(callback, null, null, {
               statusCode,
+              statusText: statusMessage,
               headers,
               trailers: this.trailers,
               opaque,
@@ -16474,11 +16491,28 @@ var require_api = __commonJS({
 var { getGlobalDispatcher, setGlobalDispatcher } = require_global2();
 var EnvHttpProxyAgent = require_env_http_proxy_agent();
 var fetchImpl = require_fetch().fetch;
+function appendFetchStackTrace(err, filename) {
+  if (!err || typeof err !== "object") {
+    return;
+  }
+  const stack = typeof err.stack === "string" ? err.stack : "";
+  const normalizedFilename = filename.replace(/\\/g, "/");
+  if (stack && (stack.includes(filename) || stack.includes(normalizedFilename))) {
+    return;
+  }
+  const capture = {};
+  Error.captureStackTrace(capture, appendFetchStackTrace);
+  if (!capture.stack) {
+    return;
+  }
+  const captureLines = capture.stack.split("\n").slice(1).join("\n");
+  err.stack = stack ? `${stack}
+${captureLines}` : capture.stack;
+}
+__name(appendFetchStackTrace, "appendFetchStackTrace");
 module.exports.fetch = /* @__PURE__ */ __name(function fetch(init, options = void 0) {
   return fetchImpl(init, options).catch((err) => {
-    if (err && typeof err === "object") {
-      Error.captureStackTrace(err);
-    }
+    appendFetchStackTrace(err, __filename);
     throw err;
   });
 }, "fetch");
diff --git a/src/undici_version.h b/src/undici_version.h
index a494e8adc3ece6..dcdfe2128b29b6 100644
--- a/src/undici_version.h
+++ b/src/undici_version.h
@@ -2,5 +2,5 @@
 // Refer to tools/dep_updaters/update-undici.sh
 #ifndef SRC_UNDICI_VERSION_H_
 #define SRC_UNDICI_VERSION_H_
-#define UNDICI_VERSION "7.19.2"
+#define UNDICI_VERSION "7.20.0"
 #endif  // SRC_UNDICI_VERSION_H_