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    CVE-2026-112397

    Pillow is a Python imaging library. Prior to 13.0.0, Pillow's ImageMorph.MorphOp.apply() can access memory before a row buffer for a zero-width image. PPM and PGM input can create an image with width zero, and the native morphology routine indexes outrow[width - 1] without rejecting that geometry. An attacker can supply such an image to an application that applies a morphology operation. This can crash the process. This issue is fixed in version 13.0.0.

    Published:Oct 19, 2026
    Last Modified:Oct 27, 2026
    EPS:Oct 19, 2026
    EPSS Score:0.00493
    CVSS Score:7.5

    Affected Products

    Vendor
    Python
    Product
    Pillow
    Vendor
    Python-pillow
    Product
    Pillow

    Exploits

    https://github.com/python-pillow/Pillow/security/advisories/GHSA-58r4-6rv3-gfh8https://github.com/python-pillow/Pillow/security/advisories/GHSA-58r4-6rv3-gfh8

    Common Attack Pattern Enumeration and Classification (CAPEC)

    No CAPEC recorded yet

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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