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@renovate renovate bot commented Nov 14, 2025

This PR contains the following updates:

Package Change Age Confidence
js-yaml 3.14.0 -> 3.14.2 age confidence

js-yaml has prototype pollution in merge (<<)

CVE-2025-64718 / GHSA-mh29-5h37-fv8m

More information

Details

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

Severity

  • CVSS Score: 5.3 / 10 (Medium)
  • Vector String: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

References

This data is provided by OSV and the GitHub Advisory Database (CC-BY 4.0).


Release Notes

nodeca/js-yaml (js-yaml)

v3.14.2

Compare Source

Security
  • Backported v4.1.1 fix to v3

v3.14.1

Compare Source

Security
  • Fix possible code execution in (already unsafe) .load() (in &anchor).

Configuration

📅 Schedule: Branch creation - "" (UTC), Automerge - At any time (no schedule defined).

🚦 Automerge: Disabled by config. Please merge this manually once you are satisfied.

Rebasing: Whenever PR becomes conflicted, 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.

@renovate renovate bot requested a review from proelbtn November 14, 2025 18:37
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renovate bot commented Nov 14, 2025

⚠️ Artifact update problem

Renovate failed to update an artifact related to this branch. You probably do not want to merge this PR as-is.

♻ Renovate will retry this branch, including artifacts, only when one of the following happens:

  • any of the package files in this branch needs updating, or
  • the branch becomes conflicted, or
  • you click the rebase/retry checkbox if found above, or
  • you rename this PR's title to start with "rebase!" to trigger it manually

The artifact failure details are included below:

File name: ui/yarn.lock
error Error: EACCES: permission denied, mkdir '/usr/local/share/node_modules'

@renovate renovate bot force-pushed the renovate/npm-js-yaml-vulnerability branch from 63d8e78 to 5126cd5 Compare November 18, 2025 02:26
@renovate renovate bot changed the title Update dependency js-yaml to v4 [SECURITY] Update dependency js-yaml to v3.14.2 [SECURITY] Nov 18, 2025
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