CVE Feed

    Dashboard / CVE / CVE-2026-34979

    CVE-2026-34979

    OpenPrinting CUPS is an open source printing system for Linux and other Unix-like operating systems. In versions 2.4.16 and prior, there is a heap-based buffer overflow in the CUPS scheduler when building filter option strings from job attribute. At time of publication, there are no publicly available patches.

    Published:Apr 3, 2026
    Last Modified:Apr 16, 2026
    EPS:Apr 3, 2026
    EPSS Score:0.00051
    CVSS Score:5.3

    Affected Products

    Vendor
    Openprinting
    Product
    Cups

    Exploits

    https://github.com/OpenPrinting/cups/security/advisories/GHSA-6qxf-7jx6-86fhhttps://github.com/OpenPrinting/cups/security/advisories/GHSA-6qxf-7jx6-86fh

    Related CVEs

    CVE-2026-87875 (CVSS 4.3) — The cupsUTF32ToUTF8() function in CUPS's cups/transcode.c lacks a source-length bound and can read past the en…
    CVE-2026-87876 (CVSS 3) — Two case-insensitive comparisons on request-derived usernames outside the main authorization path in CUPS's sc…
    CVE-2026-41079 (CVSS 4.3) — OpenPrinting CUPS is an open source printing system for Linux and other Unix-like operating systems. Prior to …
    CVE-2026-39316 (CVSS 4) — OpenPrinting CUPS is an open source printing system for Linux and other Unix-like operating systems. In versio…
    CVE-2026-39314 (CVSS 4) — OpenPrinting CUPS is an open source printing system for Linux and other Unix-like operating systems. In versio…
    CVE-2026-34980 (CVSS 6.1) — OpenPrinting CUPS is an open source printing system for Linux and other Unix-like operating systems. In versio…
    CVE-2026-34978 (CVSS 6.5) — OpenPrinting CUPS is an open source printing system for Linux and other Unix-like operating systems. In versio…
    CVE-2026-34990 (CVSS 5) — OpenPrinting CUPS is an open source printing system for Linux and other Unix-like operating systems. In versio…
    CVE-2026-27447 (CVSS 4.8) — OpenPrinting CUPS is an open source printing system for Linux and other Unix-like operating systems. In versio…
    CVE-2025-58436 (CVSS 5.1) — OpenPrinting CUPS is an open source printing system for Linux and other Unix-like operating systems. Prior to …

    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