Bumps undici from 7.25.0 to 7.29.0.

Release notes

Sourced from undici's releases.

v7.29.0

⚠️ Security fixes

High severity

• 
  GHSA-4cwx-7wf7-3272: malformed qualified private Cache-Control directives could cause cross-user information disclosure in shared caches or a parse-time crash. The cache parser now treats empty qualified directives conservatively and safely handles mixed qualified and unqualified directives. Fixed by 9f10f1e9, with regression coverage in 466e99d1.

Medium severity

• 
  GHSA-m8rv-5g2x-5cg5: a malicious type property on a duck-typed blob-like HTTP/1.1 request body could inject CRLF sequences into the generated content-type header. Undici now coerces and validates the value before adding it to the request. Fixed by 33928bc2.


• 
  GHSA-jr45-8vmc-qm54: optional whitespace around = in qualified no-cache and private directives could bypass shared-cache restrictions and disclose authenticated data across users. Cache-Control parsing now normalizes these forms and applies conservative cache decisions. Fixed by 98011a86.


• 
  GHSA-8xcm-r25x-g524: the retry interceptor could expose a stale Content-Length after resuming a partial response, potentially causing downstream response desynchronization, hangs, or corruption. Undici now rejects partial responses whose Content-Length is inconsistent with Content-Range. Fixed by 1b5a5312, with corrected fixtures in 4a9dafb1.


• 
  GHSA-v3r7-h72x-cjcm: unsanitized domain and unparsed values passed to setCookie() could inject cookie attributes. Undici now validates cookie domains, paths, and unparsed attributes more strictly. Fixed by 3bf91ddb.

Full Changelog: https://github.com/nodejs/undici/compare/v7.28.0...v7.29.0

v7.28.0

⚠️ Security Release

This release line addresses 7 security advisories, all shipped in v7.28.0.

Action required: Upgrade to undici 7.28.0 or later.

npm install undici@^7.28.0

The v7 line is not affected by GHSA-38rv-x7px-6hhq (CVE-2026-9675), which is
an 8.x-only regression.

Note on GHSA-hm92-r4w5-c3mj: this fix shipped in v7.28.0, not the
earlier 7.2x line — the vulnerable single-pool code was still present through
v7.27.2. The per-origin pool fix is
3805b8f8 (#5041).

Summary

Advisory
CVE
Severity (CVSS)
Fixed in
Fix commit

GHSA-vxpw-j846-p89q
CVE-2026-12151
High (7.5)
7.28.0
8cb10f98

GHSA-vmh5-mc38-953g
CVE-2026-9697
High (7.4)
7.28.0
04201f89

GHSA-hm92-r4w5-c3mj
CVE-2026-6734
High (7.5)
7.28.0
3805b8f8

GHSA-pr7r-676h-xcf6
CVE-2026-9678
Moderate (5.9)
7.28.0
85a24055

GHSA-p88m-4jfj-68fv
CVE-2026-9679
Moderate (5.9)
7.28.0
d0574cc4

GHSA-g8m3-5g58-fq7m
CVE-2026-11525
Low (3.7)
7.28.0
d0574cc4

GHSA-35p6-xmwp-9g52
CVE-2026-6733
Low (3.7)
7.28.0
ea8930cf

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Commits

• 
  9e38fc1 Bumped v7.29.0 (#5590)


• 
  d887e34 fix: validate coerced header values for CRLF (#5579)


• 
  33928bc fix: validate blob body content type


• 
  98011a8 fix(cache): harden cache directive parsing


• 
  4a9dafb test(retry): correct broken content-range fixtures in retry-handler.js


• 
  1b5a531 fix(retry): reject partial content length mismatch


• 
  466e99d test: cover crash on mixed unqualified and qualified private cache directives


• 
  9f10f1e fix: handle empty qualified private cache directive


• 
  3bf91dd fix: harden cookie domain, path, and unparsed attribute validation


• 
  f9eba0a Bumped v7.28.0 (#5430)


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