What is CVE-2026-41673?

CVE-2026-41673 is a high-severity vulnerability in Xmldom, classified under Uncontrolled Recursion. CVSS score: 7.5/10. Published 2026-05-07.

How severe is CVE-2026-41673?

High severity. CVSS v3 base score is 7.5 out of 10.

XXE in Xmldom

CVE-2026-41673

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.

Published 2026-05-07 · last modified 2026-08-28.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

EPSS exploit prediction

EPSS: 0.009 (58.4th percentile), scored 2026-10-19.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 58th percentile — 58.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.006 · newest: 0.009 · change: +0.002

Affected products

Xmldom — versions xmldom <= 0.6.0, @xmldom/xmldom >= 0.9.0, < 0.9.10, @xmldom/xmldom < 0.8.13

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2026-41673?: CVE-2026-41673 is a high-severity vulnerability in Xmldom, classified under Uncontrolled Recursion. CVSS score: 7.5/10. Published 2026-05-07.
How severe is CVE-2026-41673?: High severity. CVSS v3 base score is 7.5 out of 10.