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OpenAdvisories
Medium ALAS2023-2026-1911 1 CVE

Moderate: libxml2 security update (Amazon Linux 2023)

Published Jul 6, 2026 · Updated Jul 7, 2026

Ecosystem: Amazon Linux

Summary

Package updates are available for Amazon Linux 2023 that fix the following vulnerabilities: CVE-2026-6653: 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.

Fixed packages 7

ReleasePackageFixed in
Amazon Linux · 2023 libxml2 0:2.10.4-1.amzn2023.0.19
Amazon Linux · 2023 libxml2-debuginfo 0:2.10.4-1.amzn2023.0.19
Amazon Linux · 2023 libxml2-debugsource 0:2.10.4-1.amzn2023.0.19
Amazon Linux · 2023 libxml2-devel 0:2.10.4-1.amzn2023.0.19
Amazon Linux · 2023 libxml2-static 0:2.10.4-1.amzn2023.0.19
Amazon Linux · 2023 python3-libxml2 0:2.10.4-1.amzn2023.0.19
Amazon Linux · 2023 python3-libxml2-debuginfo 0:2.10.4-1.amzn2023.0.19

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

  • web
    https://alas.aws.amazon.com/cve/html/CVE-2026-6653.html