[Pkg-javascript-devel] Bug#1120696: node-js-yaml: CVE-2025-64718

[Salvatore Bonaccorso]

Source: node-js-yaml
Version: 4.1.0+dfsg+~4.0.5-7
Severity: important
Tags: security upstream
X-Debbugs-Cc: carnil at debian.org, Debian Security Team <team at security.debian.org>

Hi,

The following vulnerability was published for node-js-yaml.

CVE-2025-64718[0]:
| js-yaml is a JavaScript YAML parser and dumper. 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. The problem is patched in js-yaml 4.1.1. Users 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).


If you fix the vulnerability please also make sure to include the
CVE (Common Vulnerabilities & Exposures) id in your changelog entry.

For further information see:

[0] https://security-tracker.debian.org/tracker/CVE-2025-64718
    https://www.cve.org/CVERecord?id=CVE-2025-64718
[1] https://github.com/nodeca/js-yaml/security/advisories/GHSA-mh29-5h37-fv8m
[2] https://github.com/nodeca/js-yaml/commit/383665ff4248ec2192d1274e934462bb30426879

Regards,
Salvatore