RHSA-2026:98486: Moderate: xz security update

Published Nov 11, 2026
·
Updated

XZ Utils is an integrated collection of user-space file compression utilities based on the Lempel-Ziv-Markov chain algorithm (LZMA), which performs lossless data compression. The algorithm provides a high compression ratio while keeping the decompression time short.Security Fix(es): xz: XZ Utils: Denial of Service via buffer overflow in index decoding (CVE-2026-34743) 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.

Affected Software

32 affected componentsFixes available
redhat/xz<5.2.5-8.el9_9.1
5.2.5-8.el9_9.1
redhat/xz<5.2.5-8.el9_9.1
5.2.5-8.el9_9.1
redhat/xz-debuginfo<5.2.5-8.el9_9.1
5.2.5-8.el9_9.1
redhat/xz-debuginfo<5.2.5-8.el9_9.1
5.2.5-8.el9_9.1
redhat/xz-debugsource<5.2.5-8.el9_9.1
5.2.5-8.el9_9.1
redhat/xz-debugsource<5.2.5-8.el9_9.1
5.2.5-8.el9_9.1
redhat/xz-devel<5.2.5-8.el9_9.1
5.2.5-8.el9_9.1
redhat/xz-devel<5.2.5-8.el9_9.1
5.2.5-8.el9_9.1
redhat/xz-libs<5.2.5-8.el9_9.1
5.2.5-8.el9_9.1
redhat/xz-libs<5.2.5-8.el9_9.1
5.2.5-8.el9_9.1
redhat/xz-libs-debuginfo<5.2.5-8.el9_9.1
5.2.5-8.el9_9.1
redhat/xz-libs-debuginfo<5.2.5-8.el9_9.1
5.2.5-8.el9_9.1
redhat/xz-lzma-compat<5.2.5-8.el9_9.1
5.2.5-8.el9_9.1
redhat/xz-lzma-compat-debuginfo<5.2.5-8.el9_9.1
5.2.5-8.el9_9.1
redhat/xz-lzma-compat-debuginfo<5.2.5-8.el9_9.1
5.2.5-8.el9_9.1
redhat/xz-lzma-compat<5.2.5-8.el9_9.1
5.2.5-8.el9_9.1
redhat/xz<5.2.5-8.el9_9.1
5.2.5-8.el9_9.1
redhat/xz-debuginfo<5.2.5-8.el9_9.1
5.2.5-8.el9_9.1
redhat/xz-debugsource<5.2.5-8.el9_9.1
5.2.5-8.el9_9.1
redhat/xz-devel<5.2.5-8.el9_9.1
5.2.5-8.el9_9.1
redhat/xz-libs<5.2.5-8.el9_9.1
5.2.5-8.el9_9.1
redhat/xz-libs-debuginfo<5.2.5-8.el9_9.1
5.2.5-8.el9_9.1
redhat/xz-lzma-compat<5.2.5-8.el9_9.1
5.2.5-8.el9_9.1
redhat/xz-lzma-compat-debuginfo<5.2.5-8.el9_9.1
5.2.5-8.el9_9.1
redhat/xz<5.2.5-8.el9_9.1.aa
5.2.5-8.el9_9.1.aa
redhat/xz-debuginfo<5.2.5-8.el9_9.1.aa
5.2.5-8.el9_9.1.aa
redhat/xz-debugsource<5.2.5-8.el9_9.1.aa
5.2.5-8.el9_9.1.aa
redhat/xz-devel<5.2.5-8.el9_9.1.aa
5.2.5-8.el9_9.1.aa
redhat/xz-libs<5.2.5-8.el9_9.1.aa
5.2.5-8.el9_9.1.aa
redhat/xz-libs-debuginfo<5.2.5-8.el9_9.1.aa
5.2.5-8.el9_9.1.aa
redhat/xz-lzma-compat<5.2.5-8.el9_9.1.aa
5.2.5-8.el9_9.1.aa
redhat/xz-lzma-compat-debuginfo<5.2.5-8.el9_9.1.aa
5.2.5-8.el9_9.1.aa

Remediation

Recommended actions to resolve this vulnerability, in priority order.

  1. Upgrade

    Upgrade redhat/xz to a version that resolves this vulnerability.

    Fixed in 5.2.5-8.el9_9.1
  2. Upgrade

    Upgrade redhat/xz-debuginfo to a version that resolves this vulnerability.

    Fixed in 5.2.5-8.el9_9.1
  3. Upgrade

    Upgrade redhat/xz-debugsource to a version that resolves this vulnerability.

    Fixed in 5.2.5-8.el9_9.1
  4. Upgrade

    Upgrade redhat/xz-devel to a version that resolves this vulnerability.

    Fixed in 5.2.5-8.el9_9.1
  5. Upgrade

    Upgrade redhat/xz-libs to a version that resolves this vulnerability.

    Fixed in 5.2.5-8.el9_9.1
  6. Upgrade

    Upgrade redhat/xz-libs-debuginfo to a version that resolves this vulnerability.

    Fixed in 5.2.5-8.el9_9.1
  7. Upgrade

    Upgrade redhat/xz-lzma-compat to a version that resolves this vulnerability.

    Fixed in 5.2.5-8.el9_9.1
  8. Upgrade

    Upgrade redhat/xz-lzma-compat-debuginfo to a version that resolves this vulnerability.

    Fixed in 5.2.5-8.el9_9.1
  9. Upgrade

    Upgrade redhat/xz to a version that resolves this vulnerability.

    Fixed in 5.2.5-8.el9_9.1.aa
  10. Upgrade

    Upgrade redhat/xz-debuginfo to a version that resolves this vulnerability.

    Fixed in 5.2.5-8.el9_9.1.aa
  11. Upgrade

    Upgrade redhat/xz-debugsource to a version that resolves this vulnerability.

    Fixed in 5.2.5-8.el9_9.1.aa
  12. Upgrade

    Upgrade redhat/xz-devel to a version that resolves this vulnerability.

    Fixed in 5.2.5-8.el9_9.1.aa
  13. Upgrade

    Upgrade redhat/xz-libs to a version that resolves this vulnerability.

    Fixed in 5.2.5-8.el9_9.1.aa
  14. Upgrade

    Upgrade redhat/xz-libs-debuginfo to a version that resolves this vulnerability.

    Fixed in 5.2.5-8.el9_9.1.aa
  15. Upgrade

    Upgrade redhat/xz-lzma-compat to a version that resolves this vulnerability.

    Fixed in 5.2.5-8.el9_9.1.aa
  16. Upgrade

    Upgrade redhat/xz-lzma-compat-debuginfo to a version that resolves this vulnerability.

    Fixed in 5.2.5-8.el9_9.1.aa

Event History

Nov 11, 2026
Advisory Published
via Red Hat·12:00 AM
Data Sourced
via Red Hat·12:00 AM
RemedyDescriptionAffected Software

Company

Resources

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