OESA-2026-4550

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    OESA-2026-4550

    Published: 29 Oct 2026Last Modified: 29 Oct 2026
    Upstream:
    CVE-2026-111269

    Summary: libical security update

    Details: Libical is an open source implementation of the IETF's iCalendar calendaring and scheduling protocols (RFC 2445, 2446, and 2447). It parses iCal components and provides a C API for manipulating the component properties, parameters, and subcomponents. Security Fix(es): libical through 4.0.6 contains a heap-based out-of-bounds read in icalvalue_decode_ical_string() in src/libical/icalvalue.c when decoding input ending in a backslash. Attackers can supply escaped iCalendar text with a trailing backslash, causing the loop to read past the terminator and crash the application or leak adjacent heap memory.(CVE-2026-111269)

    References: https://www.openeuler.org/zh/security/security-bulletins/detail/?id=openEuler-SA-2026-4550, https://nvd.nist.gov/vuln/detail/CVE-2026-111269

    Affected packages

    Package

    Name: libical

    Purl: pkg:rpm/openEuler/libical&distro=openEuler-24.03-LTS-SP3

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -3.0.17-4.oe2403sp3

    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
    OESA-2026-4550 | CVE-DB