Vulnerability · Published May 7, 2026 · Assigned by GitHub_M

CVE-2026-41673xmldom: Denial of service via uncontrolled recursion in XML serialization

High 7.5

In plain English

A high-severity security flaw in xmldom from xmldom. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.6% (higher than 51% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 3.1)7.5High

Exploit odds (30 days)0.6%top 49.0% of all CVEs

Exploited in the wildNo reportsCISA SSVC: poc

Attack toolingNoneno public tooling known

Official 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, seven recursive traversals in lib/dom.js operate without a depth limit. A sufficiently deeply nested DOM tree causes a RangeError: Maximum call stack size exceeded, crashing the application. This issue has been patched in versions @xmldom/xmldom versions 0.9.10 and 0.8.13.

Affected packages & fixed versions

Ecosystem	Package	Fixed in	Advisory
Debian:12	node-xmldom	no fix listed	DEBIAN-CVE-2026-41673
Debian:13	node-xmldom	no fix listed	DEBIAN-CVE-2026-41673
Debian:14	node-xmldom	0.9.10-1	DEBIAN-CVE-2026-41673
Ubuntu:22.04:LTS	node-xmldom	no fix listed	UBUNTU-CVE-2026-41673
Ubuntu:24.04:LTS	node-xmldom	no fix listed	UBUNTU-CVE-2026-41673
Ubuntu:25.10	node-xmldom	no fix listed	UBUNTU-CVE-2026-41673
Ubuntu:26.04:LTS	node-xmldom	no fix listed	UBUNTU-CVE-2026-41673
Ubuntu:26.10	node-xmldom	no fix listed	UBUNTU-CVE-2026-41673
npm	@xmldom/xmldom	0.9.10	GHSA-2v35-w6hq-6mfw
npm	@xmldom/xmldom	0.8.13	GHSA-2v35-w6hq-6mfw
npm	xmldom	no fix listed	GHSA-2v35-w6hq-6mfw

Affected products (as reported)

Vendor	Product	Versions
xmldom	xmldom	xmldom <= 0.6.0@xmldom/xmldom >= 0.9.0, < 0.9.10@xmldom/xmldom < 0.8.13

Weakness: CWE-674, CWE-776 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

References

https://github.com/xmldom/xmldom/security/advisories/GHSA-2v35-w6hq-6mfw x_refsource_CONFIRM
https://github.com/xmldom/xmldom/commit/17678a2a73ecbd1a2da90f3d47dc23da9cef81aa x_refsource_MISC
https://github.com/xmldom/xmldom/commit/291257493cb0eb6980eda83b162a9c4e6d7d2597 x_refsource_MISC
https://github.com/xmldom/xmldom/commit/2d6d6916ed8a4c223db1f6d7560ab4544c465b0f x_refsource_MISC
https://github.com/xmldom/xmldom/commit/430357c7b6333108856e917bf2367afe5ceb6f8a x_refsource_MISC
https://github.com/xmldom/xmldom/commit/4845ef109221df0890825de2822fbe77afba3afe x_refsource_MISC
https://github.com/xmldom/xmldom/commit/8834218c85ac2a4d757b9587c9028e67c2f7b6c3 x_refsource_MISC
https://github.com/xmldom/xmldom/commit/8b7cfd1491314abdc347261921d7334ff15f7112 x_refsource_MISC
https://github.com/xmldom/xmldom/commit/b0620383abc1df067f3ce1014c43ae1bc1161eeb x_refsource_MISC
https://github.com/xmldom/xmldom/commit/e6edcab6bef5bcdba0b220bb35442aa72f452b84 x_refsource_MISC
https://github.com/xmldom/xmldom/releases/tag/0.8.13 x_refsource_MISC
https://github.com/xmldom/xmldom/releases/tag/0.9.10 x_refsource_MISC
https://access.redhat.com/security/cve/CVE-2026-41673 vdb-entry, x_refsource_REDHAT
RHBZ#2467630 issue-tracking, x_refsource_REDHAT
https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-41673.json x_sadp-csaf-vex
https://access.redhat.com/errata/RHSA-2026:26234 vendor-advisory, x_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:60520 vendor-advisory, x_refsource_REDHAT