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@renovate renovate bot commented Nov 15, 2025

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.

Configuration

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Rebasing: Whenever PR becomes conflicted, or you tick the rebase/retry checkbox.

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This PR was generated by Mend Renovate. View the repository job log.

@HeRaNO
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HeRaNO commented Jan 7, 2026

It seems that the renovate bot stops merging PR. @stevenjoezhang would you please take a look?

@stevenjoezhang
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We have not enabled automerge, so pull requests require manual review.

@renovate renovate bot changed the title Update dependency js-yaml to v4.1.1 [SECURITY] Update dependency js-yaml to v4.1.1 [SECURITY] - autoclosed Jan 7, 2026
@renovate renovate bot closed this Jan 7, 2026
@renovate renovate bot deleted the renovate/npm-js-yaml-vulnerability branch January 7, 2026 03:02
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3 participants