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    CVE-2026-112390

    Pillow is a Python imaging library. From 7.2.0 until 13.0.0, Pillow can enter an infinite loop while determining the frame count of a MIC image. MicImageFile inherits TIFF frame traversal, but MicImageFile.tell reports the OLE stream index and its seek() resets TIFF frame state, so an embedded TIFF with at least three IFDs never advances. When an application with olefile installed reads n_frames or saves all frames from a crafted MIC file, the non-advancing traversal can hold a worker at full CPU indefinitely. This issue is fixed in version 13.0.0.

    Published:Oct 19, 2026
    Last Modified:Oct 23, 2026
    EPS:Oct 19, 2026
    EPSS Score:0.00291
    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-22hg-r758-rrw9https://github.com/python-pillow/Pillow/security/advisories/GHSA-22hg-r758-rrw9

    Common Attack Pattern Enumeration and Classification (CAPEC)

    No CAPEC recorded yet

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