CVE-2026-41672
Medium
Elevated severity or exploit probability.
CVSS base
7.5
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
EPSS — probability of exploitation (30 days)
0.7%
49.0th percentile
CISA KEV
Not listed
Weakness / dates
CWE-91
Published 2026-05-07 · modified 2026-08-28
Description
xmldom is a pure JavaScript W3C standard-based (XML DOM Level 2 Core) `DOMParser` and `XMLSerializer` module. In @xmldom/xmldom prior to versions 0.9.10 and 0.8.13 and xmldom version 0.6.0 and prior, the package allows attacker-controlled comment content to be serialized into XML without validating or neutralizing comment-breaking sequences. As a result, an attacker can terminate the comment early and inject arbitrary XML nodes into the serialized output. This issue has been patched in versions @xmldom/xmldom versions 0.9.10 and 0.8.13.
References
- https://github.com/xmldom/xmldom/commit/b397540889086da868c30c366ad5c220d1a750c7
- https://github.com/xmldom/xmldom/commit/fda7cc313de30243fea35cada64e0bb12099c2a1
- https://github.com/xmldom/xmldom/pull/987
- https://github.com/xmldom/xmldom/releases/tag/0.8.13
- https://github.com/xmldom/xmldom/releases/tag/0.9.10
- https://github.com/xmldom/xmldom/security/advisories/GHSA-j759-j44w-7fr8
- https://access.redhat.com/errata/RHSA-2026:26234
- https://access.redhat.com/errata/RHSA-2026:60520
- https://access.redhat.com/security/cve/CVE-2026-41672
- https://bugzilla.redhat.com/show_bug.cgi?id=2467631
- https://github.com/xmldom/xmldom/security/advisories/GHSA-j759-j44w-7fr8
- https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-41672.json