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OpenAdvisories
Low RHSA-2026:61248 1 CVE

Red Hat Security Advisory: libxml2 security update

Published Aug 31, 2026 · Updated Oct 15, 2026

Ecosystem: Red Hat

Fixed packages 9

ReleasePackageFixed in
Red Hat · RHEL 8 enterprise_linux:8::appstream libxml2-debuginfo 0:2.9.7-21.el8_10.7
Red Hat · RHEL 8 enterprise_linux:8::appstream libxml2-debugsource 0:2.9.7-21.el8_10.7
Red Hat · RHEL 8 enterprise_linux:8::appstream libxml2-devel 0:2.9.7-21.el8_10.7
Red Hat · RHEL 8 enterprise_linux:8::appstream python3-libxml2-debuginfo 0:2.9.7-21.el8_10.7
Red Hat · RHEL 8 enterprise_linux:8::baseos libxml2 0:2.9.7-21.el8_10.7
Red Hat · RHEL 8 enterprise_linux:8::baseos libxml2-debuginfo 0:2.9.7-21.el8_10.7
Red Hat · RHEL 8 enterprise_linux:8::baseos libxml2-debugsource 0:2.9.7-21.el8_10.7
Red Hat · RHEL 8 enterprise_linux:8::baseos python3-libxml2 0:2.9.7-21.el8_10.7
Red Hat · RHEL 8 enterprise_linux:8::baseos python3-libxml2-debuginfo 0:2.9.7-21.el8_10.7

Vulnerabilities 1

  • Low 1.8
    CVE-2026-11979

    Stack-Based Buffer Overflow in libxml2

    libxml2 is vulnerable to multiple stack-based buffer overflows in the xmlcatalog utility when running in --shell mode. The usershell() function processes user input using fixed-size stack buffers without proper bounds checking. By supplying an overly long inp…

    xmlsoft libxml2 libxml2 libxml2 Debian Ubuntu

References

  • article
    https://access.redhat.com/security/updates/classification/#moderate
  • report
    https://bugzilla.redhat.com/show_bug.cgi?id=2494191
  • advisory
    https://security.access.redhat.com/data/csaf/v2/advisories/2026/rhsa-2026_61248.json
  • report
    https://access.redhat.com/security/cve/CVE-2026-11979
  • advisory
    https://www.cve.org/CVERecord?id=CVE-2026-11979
  • advisory
    https://nvd.nist.gov/vuln/detail/CVE-2026-11979
  • article
    https://cert.pl/en/posts/2026/06/CVE-2026-11979
  • article
    https://gitlab.gnome.org/GNOME/libxml2/-/commit/c2e233fc1b341685fc99621b2768b503f777a72e