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    CVE-2026-20889

    A heap-based buffer overflow vulnerability exists in the x3f_thumb_loader functionality of LibRaw Commit d20315b. A specially crafted malicious file can lead to a heap buffer overflow. An attacker can provide a malicious file to trigger this vulnerability.

    Published:Apr 7, 2026
    Last Modified:Apr 13, 2026
    EPS:Apr 7, 2026
    EPSS Score:0.00053
    CVSS Score:9.8

    Affected Products

    Vendor
    Libraw
    Product
    Libraw

    Exploits

    https://talosintelligence.com/vulnerability_reports/TALOS-2026-2358https://www.talosintelligence.com/vulnerability_reports/TALOS-2026-2358

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    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