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Update dependency js-yaml to v4.1.1 [SECURITY]#302

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confused-Techie merged 1 commit intomainfrom
renovate/npm-js-yaml-vulnerability
Apr 13, 2026
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Update dependency js-yaml to v4.1.1 [SECURITY]#302
confused-Techie merged 1 commit intomainfrom
renovate/npm-js-yaml-vulnerability

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@renovate renovate Bot commented Apr 13, 2026

This PR contains the following updates:

Package Change Age Confidence
js-yaml 4.1.04.1.1 age confidence

GitHub Vulnerability Alerts

CVE-2025-64718

Impact

In js-yaml 4.1.0, 4.0.0, and 3.14.1 and below, it's possible for an attacker to modify the prototype of the result of a parsed yaml document via prototype pollution (__proto__). All users who parse untrusted yaml documents may be impacted.

Patches

Problem is patched in js-yaml 4.1.1 and 3.14.2.

Workarounds

You can protect against this kind of attack on the server by using node --disable-proto=delete or deno (in Deno, pollution protection is on by default).

References

https://cheatsheetseries.owasp.org/cheatsheets/Prototype_Pollution_Prevention_Cheat_Sheet.html


Release Notes

nodeca/js-yaml (js-yaml)

v4.1.1

Compare Source

Security
  • Fix prototype pollution issue in yaml merge (<<) operator.

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@renovate renovate Bot added the dependencies Pull requests that update a dependency file label Apr 13, 2026
@confused-Techie confused-Techie merged commit 439a46c into main Apr 13, 2026
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@confused-Techie confused-Techie deleted the renovate/npm-js-yaml-vulnerability branch April 13, 2026 08:19
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