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@renovate renovate bot commented Nov 16, 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

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

🚦 Automerge: Enabled.

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

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@renovate renovate bot enabled auto-merge (squash) November 16, 2025 14:04
@renovate renovate bot changed the title chore(deps): update dependency js-yaml to v4.1.1 [security] chore(deps): update dependency js-yaml to v4.1.1 [security] - autoclosed Nov 18, 2025
@renovate renovate bot closed this Nov 18, 2025
auto-merge was automatically disabled November 18, 2025 02:42

Pull request was closed

@renovate renovate bot deleted the renovate/npm-js-yaml-vulnerability branch November 18, 2025 02:42
@renovate renovate bot changed the title chore(deps): update dependency js-yaml to v4.1.1 [security] - autoclosed chore(deps): update dependency js-yaml to v4.1.1 [security] Nov 19, 2025
@renovate renovate bot reopened this Nov 19, 2025
@renovate renovate bot force-pushed the renovate/npm-js-yaml-vulnerability branch 2 times, most recently from 5c6afc5 to c5f0b70 Compare November 19, 2025 00:33
@renovate renovate bot enabled auto-merge (squash) November 19, 2025 04:30
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