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Medium RLSA-2026:69655 1 CVE

Moderate: libxml2 security, bug fix, and enhancement update

Published Sep 23, 2026 · Updated Sep 23, 2026

Ecosystem: Rocky Linux

Summary

The libxml2 library is a development toolbox providing the implementation of various XML standards.

Security Fix(es):

* libxml2: mingw-libxml2: libxml2: Denial of Service via crafted XML input due to use-after-free (CVE-2026-6653)

Bug Fix(es) and Enhancement(s):

* libxml2: CVE-2025-9714 fix (Rocky Linux-119279) backported wrong upstream commit ? dyn:map recursion still crashes (JIRA:Rocky Linux-249282)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

Fixed packages 1

ReleasePackageFixed in
Rocky Linux · 8 libxml2 0:2.9.7-21.el8_10.8

Vulnerabilities 1

  • High 7.0
    CVE-2026-6653

    libxml2: Use after free in xmlParseInternalSubset via improper entity resolution handling

    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.

    GNOME libxml2 libxml2 libxml2 Debian Ubuntu

References

  • report
    https://bugzilla.redhat.com/show_bug.cgi?id=2491354
  • advisory
    https://access.redhat.com/errata/RHSA-2026:69655