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    CVE-2026-112896

    Pillow is a Python imaging library. Prior to 13.0.0, Pillow's TIFF encoder can read beyond a ColorMap buffer when retained TIFF metadata has a plane size inconsistent with BitsPerSample. A small TIFF can be opened normally and then retain a crafted ColorMap that is reused when the image is saved. An application that re-encodes the attacker's TIFF with libtiff can trigger the out-of-bounds read. This can disclose heap memory in the output or 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:7.1

    Affected Products

    Vendor
    Python
    Product
    Pillow
    Vendor
    Python-pillow
    Product
    Pillow

    Exploits

    https://github.com/python-pillow/Pillow/security/advisories/GHSA-pchr-8j38-3x4phttps://github.com/python-pillow/Pillow/security/advisories/GHSA-pchr-8j38-3x4p

    Common Weakness Enumeration

    CWE-125 Out-of-bounds Read

    Common Attack Pattern Enumeration and Classification (CAPEC)

    CAPEC-540 Overread Buffers

    Related CVEs

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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