CVE-2026-41674xmldom is a pure JavaScript W3C standard-based (XML DOM Level 2 Core) `DOMParser` and `XMLSerializer` module.
Updated under an hour ago ()
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No exploitation reported and no EPSS estimate yet.
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 serializes DocumentType node fields (internalSubset, publicId, systemId) verbatim without any escaping or validation. When these fields are set programmatically to attacker-controlled strings, XMLSerializer.serializeToString can produce output where the DOCTYPE declaration is terminated early and arbitrary markup appears outside it. This issue has been patched in versions @xmldom/xmldom versions 0.9.10 and 0.8.13.
- CVSS
- 7.5 HIGH (v3.1, NVD)CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
- Weakness (CWE)
- CWE-91
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- Not given
- NVD analysis
- Deferred
- Record last updated
- Sep 10, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
No affected products are listed yet.
References
- https://github.com/xmldom/xmldom/commit/372008f9ae0e20fd69f761c7b79e202598267314
- 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-f6ww-3ggp-fr8h
- https://access.redhat.com/errata/RHSA-2026:20034
- https://access.redhat.com/errata/RHSA-2026:21338
- https://access.redhat.com/errata/RHSA-2026:21703
- https://access.redhat.com/errata/RHSA-2026:26234
- https://access.redhat.com/security/cve/CVE-2026-41674
- https://bugzilla.redhat.com/show_bug.cgi?id=2467620
- https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-41674.json
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.