Update dependency undici to v6.21.1 [SECURITY]

[renovate]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
undici (source)	6.19.8 -> 6.21.1

GitHub Vulnerability Alerts

CVE-2025-22150

Impact

Undici fetch() uses Math.random() to choose the boundary for a multipart/form-data request. It is known that the output of Math.random() can be predicted if several of its generated values are known.

If there is a mechanism in an app that sends multipart requests to an attacker-controlled website, they can use this to leak the necessary values. Therefore, An attacker can tamper with the requests going to the backend APIs if certain conditions are met.

Patches

This is fixed in 5.28.5; 6.21.1; 7.2.3.

Workarounds

Do not issue multipart requests to attacker controlled servers.

References

• https://hackerone.com/reports/2913312
• https://blog.securityevaluators.com/hacking-the-javascript-lottery-80cc437e3b7f

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Release Notes

nodejs/undici (undici)

v6.21.1

Compare Source

⚠️ Security Release ⚠️

Fixes CVE CVE-2025-22150 GHSA-c76h-2ccp-4975 (embargoed until 22-01-2025).

What's Changed

• fix(#​3736): back-port 183f8e9 to v6.x by @​ggoodman in https://github.com/nodejs/undici/pull/3855
• fix(#​3817): send servername for SNI on TLS (#​3821) [backport] by @​metcoder95 in https://github.com/nodejs/undici/pull/3864
• fix: sending formdata bodies with http2 (#​3863) [backport] by @​metcoder95 in https://github.com/nodejs/undici/pull/3866
• [Backport v6.x] fix: Fixed the issue that there is no running request when http2 goaway by @​github-actions in https://github.com/nodejs/undici/pull/3877
• types: [backport] Update return type of RetryCallback (#​3851) by @​metcoder95 in https://github.com/nodejs/undici/pull/3876

Full Changelog: nodejs/undici@v6.21.0...v6.21.1

v6.21.0

Compare Source

What's Changed

• [Backport v6.x] web: mark as uncloneable when possible (#​3709) by @​jazelly in https://github.com/nodejs/undici/pull/3744
• [Backport v6.x] fetch: fix content-encoding order by @​github-actions in https://github.com/nodejs/undici/pull/3764
• [Backport v6.x] fix: handle undefined deref() of WeakRef(socket) by @​github-actions in https://github.com/nodejs/undici/pull/3822
• [Backport v6.x] fix: range end is zero-indexed by @​github-actions in https://github.com/nodejs/undici/pull/3827

Full Changelog: nodejs/undici@v6.20.1...v6.21.0

v6.20.1

Compare Source

v6.20.0

Compare Source

What's Changed

• Remove patched dom types (v6.x branch) by @​eXhumer in https://github.com/nodejs/undici/pull/3531
• docs(Backport v6.x): Fix signature of RetryHandler by @​github-actions in https://github.com/nodejs/undici/pull/3594
• deps(dev): update @​types/node by @​metcoder95 in https://github.com/nodejs/undici/pull/3618
• fix: throw on retry when payload is consume by downstream by @​github-actions in https://github.com/nodejs/undici/pull/3596
• feat(Backport v6.x): move throwOnError to interceptor by @​github-actions in https://github.com/nodejs/undici/pull/3595
• [Backport v6.x] fix: reduce memory usage in client-h1 by @​github-actions in https://github.com/nodejs/undici/pull/3672
• [Backport v6.x] fix: refactor fast timers, fix UND_ERR_CONNECT_TIMEOUT on event loop blocking by @​github-actions in https://github.com/nodejs/undici/pull/3673
• [Backport v6.x] fix: run asserts first if possible by @​github-actions in https://github.com/nodejs/undici/pull/3674
• [Backport v6.x] fix: use fasttimers for all connection timeouts by @​github-actions in https://github.com/nodejs/undici/pull/3675
• [Backport v6.x] ci: less flaky test/request-timeout.js test by @​github-actions in https://github.com/nodejs/undici/pull/3678
• [Backport v6.x] test: less flaky timers acceptance test, rework fast timer tests to pass them faster by @​github-actions in https://github.com/nodejs/undici/pull/3679
• [Backport v6.x] ignore leading and trailing crlfs in formdata body by @​github-actions in https://github.com/nodejs/undici/pull/3681
• [Backport v6.x] mock: fix mocking of Uint8Array and ArrayBuffers as provided mock-responses by @​github-actions in https://github.com/nodejs/undici/pull/3689
• [Backport v6.x] handle body errors by @​Uzlopak in https://github.com/nodejs/undici/pull/3700

Full Changelog: nodejs/undici@v6.19.8...v6.20.0

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