CVE-2026-41674
HIGH EPSS 31.0%
Published May 7, 20261mo ago · Modified Jun 17, 20262w ago
8.7 CVSS 4.0
Published May 7, 2026 1mo ago
Last Modified Jun 17, 2026 2w ago
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 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 Details
Base Score
Exploitability
Impact
Vector string
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X Attack Vector Network
Attack Complexity Low
Privileges Required None
User Interaction None
Scope X
Threat Intelligence
EPSS Exploit Probability
31.0% percentile
Exploit & Patch Status
No Known Exploit
No Patch Available
Weaknesses 1
CWE-91
References 4
- github.com https://github.com/xmldom/xmldom/commit/372008f9ae0e20fd69f761c7b79e202598267314
- github.com https://github.com/xmldom/xmldom/releases/tag/0.8.13
- github.com https://github.com/xmldom/xmldom/releases/tag/0.9.10
- github.com https://github.com/xmldom/xmldom/security/advisories/GHSA-f6ww-3ggp-fr8h
Remediation
No remediation data recorded yet
Check vendor advisories and the NVD entry for patch availability.