ALSA-2026:64787

    Dashboard / Vulnerabilities / ALSA-2026:64787

    ALSA-2026:64787

    Published: 8 Sept 2026Last Modified: 9 Sept 2026

    Summary: Moderate: xz security update

    Details: 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.

    References: https://access.redhat.com/errata/RHSA-2026:64787, https://access.redhat.com/security/cve/CVE-2026-34743, https://bugzilla.redhat.com/2454589, https://errata.almalinux.org/10/ALSA-2026-64787.html

    Affected packages

    Package

    Name: xz

    Purl: pkg:rpm/almalinux/xz

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -1:5.6.2-4.el10_2.1

    Affected versions

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High
    ALSA-2026:64787 | CVE-DB