UBUNTU-CVE-2026-89156

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    UBUNTU-CVE-2026-89156

    Published: 11 Sept 2026Last Modified: 4 Nov 2026
    Upstream:
    CVE-2026-89156
    Aliases:
    USN-8974-1

    Summary:

    Details: PCRE2 before 10.48 has a pcre2_match out-of-bounds read after a JIT fallback when an attacker can provide invalid UTF data.

    References: https://ubuntu.com/security/CVE-2026-89156, https://www.cve.org/CVERecord?id=CVE-2026-89156, https://github.com/PCRE2Project/pcre2/security/advisories/GHSA-2p8c-ff85-vh9x, https://github.com/PCRE2Project/pcre2/releases/tag/pcre2-10.48, https://ubuntu.com/security/notices/USN-8974-1

    Affected packages

    Package

    Name: pcre2

    Purl: pkg:deb/ubuntu/pcre2?arch=source&distro=esm-infra%2Ffocal

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -10.34-7ubuntu0.1+esm1

    Affected versions

    10.32-5

    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
    UBUNTU-CVE-2026-89156 | CVE-DB