What is GHSA-v4qw-p44r-qhfg?

GHSA-v4qw-p44r-qhfg is a security advisory published by GitHub Security Advisories with High severity. Use After Free in libxml2's xmlParseInternalSubset from GNOME libxml2 version 2.9.11 to 2.11.0...

Which CVE IDs does GHSA-v4qw-p44r-qhfg cover?

GHSA-v4qw-p44r-qhfg covers the following CVE IDs: CVE-2026-6653. Each CVE has its own detail page on EchelonGraph Pulse with the synthesized EG score.

GHSA-v4qw-p44r-qhfgHigh

Use After Free in libxml2's xmlParseInternalSubset from GNOME libxml2 version 2.9.11 to 2.11.0...

Vendor

GitHub Security Advisories

Published

June 22, 2026

Last Modified

June 22, 2026

🔗 CVE IDs covered (1)

CVE-2026-6653 →

📋 Description

Use After Free in libxml2's xmlParseInternalSubset from GNOME libxml2 version 2.9.11 to 2.11.0 allows a remote attacker to cause a denial-of-service via maliciously crafted XML input with improper entity resolution handling.

🔗 References (4)

https://nvd.nist.gov/vuln/detail/CVE-2026-6653
https://bugs.launchpad.net/ubuntu/+source/libxml2/+bug/2141260
https://gitlab.gnome.org/GNOME/libxml2/-/work_items/1058
https://github.com/advisories/GHSA-v4qw-p44r-qhfg