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Vulnerability details

5.3/10
CVSS 3.1
GHSA-mh29-5h37-fv8m
false_positive Published 2025-11-14 Updated 2026-01-31
GitHub Advisory
Vulnerability Data from Dependency-Track
Affected versions
Score
5.3 CVSS 3.1 GITHUB CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
Description
### 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
Same vulnerability as
CVE-2025-64718 false_positive according to EUVD-2025-175314
Analysis Read only
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