ALSA-2025:21776

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    ALSA-2025:21776

    Published: 19 Nov 2025Last Modified: 29 Oct 2026

    Summary: Important: expat security update

    Details: Expat is a C library for parsing XML documents. Security Fix(es): * expat: libexpat in Expat allows attackers to trigger large dynamic memory allocations via a small document that is submitted for parsing (CVE-2025-59375) 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-2025:21776, https://access.redhat.com/security/cve/CVE-2025-59375, https://bugzilla.redhat.com/2395108, https://errata.almalinux.org/8/ALSA-2025-21776.html, https://www.redhat.com/security/data/cve/CVE-2013-0340.html, https://www.redhat.com/security/data/cve/CVE-2022-23990.html, https://www.redhat.com/security/data/cve/CVE-2024-28757.html

    Affected packages

    Package

    Name: expat

    Purl: pkg:rpm/almalinux/expat

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -2.5.0-1.el8_10

    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-2025:21776 | CVE-DB