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@renovate renovate bot commented Nov 14, 2025

This PR contains the following updates:

Package Change Age Confidence
js-yaml 4.1.0 -> 4.1.1 age confidence

GitHub Vulnerability Alerts

CVE-2025-64718

Impact

In js-yaml 4.1.0 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.

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

📅 Schedule: Branch creation - "" in timezone America/Los_Angeles, Automerge - At any time (no schedule defined).

🚦 Automerge: Enabled.

Rebasing: Whenever PR is behind base branch, or you tick the rebase/retry checkbox.

🔕 Ignore: Close this PR and you won't be reminded about this update again.


  • If you want to rebase/retry this PR, check this box

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

| datasource | package | from  | to    |
| ---------- | ------- | ----- | ----- |
| npm        | js-yaml | 4.1.0 | 4.1.1 |


Signed-off-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>
@renovate renovate bot added the dependencies Pull requests that update a dependency file label Nov 14, 2025
@renovate renovate bot requested a review from lucacome as a code owner November 14, 2025 18:25
@renovate renovate bot added javascript Pull requests that update Javascript code dependencies Pull requests that update a dependency file labels Nov 14, 2025
@renovate renovate bot enabled auto-merge (squash) November 14, 2025 18:25
@renovate renovate bot added the javascript Pull requests that update Javascript code label Nov 14, 2025
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@renovate renovate bot merged commit e0a77fa into main Nov 14, 2025
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@renovate renovate bot deleted the renovate/npm-js-yaml-vulnerability branch November 14, 2025 19:17
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