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CVE-2026-112398

CVE-2026-112398 · Pillow: Heap buffer overflow in FlashPix (FPX) JPEG decoding leads to code execution

This page contains facts from public vulnerability sources. Check the original advisory before updating.

Pillow is a Python imaging library. Prior to 13.0.0, Pillow's FlashPix JPEG-tile decoder can write decoded scanlines beyond the allocated tile buffer. FlashPix (FPX) JPEG decoding selects raw mode LA with two bytes per pixel, while an unrecognized JPEG mode can be decoded as JCS_UNKNOWN with four components, causing ImagingJpegDecode to write four-component scanlines into the two-byte tile buffer. An attacker can supply a crafted OLE2 FlashPix file to an application with the optional olefile dependency installed that opens or thumbnails untrusted input. This can corrupt heap memory and may allow arbitrary code execution. This issue is fixed in version 13.0.0.

CVSS 9.2 · Critical · EPSS 0.3% · Public exploit · Fix available

Published
Updated

Stack: system · python

Affected products and versions

  • pillow

    Versions
    • < 13.0.0: Affected

    No fix published

  • pillow Debian:12

    Versions
    • 10.0.0-1
    • 10.1.0-1
    • 10.2.0-1
    • 10.3.0-1
    • 10.3.0-2
    • 10.4.0-1
    • 10.4.0-1.1
    • 11.1.0-1
    • 11.1.0-2
    • 11.1.0-3
    • 11.1.0-4
    • 11.1.0-5
    • 11.2.1-1
    • 11.3.0-1
    • 12.0.0-1
    • 12.1.0-1
    • 12.1.1-1
    • 12.1.1-2
    • 12.2.0-1
    • 12.3.0-1
    • 13.0.0-1
    • 9.4.0-1.1
    • 9.4.0-1.1+deb12u1
    • 9.5.0-1
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • pillow Debian:13

    Versions
    • 11.1.0-5
    • 11.1.0-5+deb13u1
    • 11.1.0-5+deb13u2
    • 11.1.0-5+deb13u3
    • 11.1.0-5+deb13u4
    • 11.2.1-1
    • 11.3.0-1
    • 12.0.0-1
    • 12.1.0-1
    • 12.1.1-1
    • 12.1.1-2
    • 12.2.0-1
    • 12.3.0-1
    • 13.0.0-1
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • pillow Debian:14

    Versions
    • 11.1.0-5
    • 11.2.1-1
    • 11.3.0-1
    • 12.0.0-1
    • 12.1.0-1
    • 12.1.1-1
    • 12.1.1-2
    • 12.2.0-1
    • 12.3.0-1
    • 13.0.0-1
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • pillow PyPI

    Versions
    • 1.0
    • 1.1
    • 1.2
    • 1.3
    • 1.4
    • 1.5
    • 1.6
    • 1.7.0
    • 1.7.1
    • 1.7.2
    • 1.7.3
    • 1.7.4
    • 1.7.5
    • 1.7.6
    • 1.7.7
    • 1.7.8
    • 10.0.0
    • 10.0.1
    • 10.1.0
    • 10.2.0
    • 10.3.0
    • 10.4.0
    • 11.0.0
    • 11.1.0
    • 11.2.1
    • 11.3.0
    • 12.0.0
    • 12.1.0
    • 12.1.1
    • 12.2.0
    • 12.3.0
    • 2.0.0
    • 2.1.0
    • 2.2.0
    • 2.2.1
    • 2.2.2
    • 2.3.0
    • 2.3.1
    • 2.3.2
    • 2.4.0
    • 2.5.0
    • 2.5.1
    • 2.5.2
    • 2.5.3
    • 2.6.0
    • 2.6.1
    • 2.6.2
    • 2.7.0
    • 2.8.0
    • 2.8.1
    • 2.8.2
    • 2.9.0
    • 3.0.0
    • 3.1.0
    • 3.1.0.rc1
    • 3.1.0rc1
    • 3.1.1
    • 3.1.2
    • 3.2.0
    • 3.3.0
    • 3.3.1
    • 3.3.2
    • 3.3.3
    • 3.4.0
    • 3.4.1
    • 3.4.2
    • 4.0.0
    • 4.1.0
    • 4.1.1
    • 4.2.0
    • 4.2.1
    • 4.3.0
    • 5.0.0
    • 5.1.0
    • 5.2.0
    • 5.3.0
    • 5.4.0
    • 5.4.0.dev0
    • 5.4.1
    • 6.0.0
    • 6.1.0
    • 6.2.0
    • 6.2.1
    • 6.2.2
    • 7.0.0
    • 7.1.0
    • 7.1.1
    • 7.1.2
    • 7.2.0
    • 8.0.0
    • 8.0.1
    • 8.1.0
    • 8.1.1
    • 8.1.2
    • 8.2.0
    • 8.3.0
    • 8.3.1
    • 8.3.2
    • 8.4.0
    • 9.0.0
    • 9.0.1
    • 9.1.0
    • 9.1.1
    • 9.2.0
    • 9.3.0
    • 9.4.0
    • 9.5.0
    Affected ranges
    • ECOSYSTEM: < 13.0.0

    Update to 13.0.0

  • pillow Ubuntu:Pro:14.04:LTS

    Versions
    • 2.2.1-1ubuntu2
    • 2.2.1-2ubuntu1
    • 2.2.1-3ubuntu2
    • 2.2.1-3ubuntu3
    • 2.2.1-3ubuntu4
    • 2.2.1-3ubuntu6
    • 2.3.0-1ubuntu1
    • 2.3.0-1ubuntu2
    • 2.3.0-1ubuntu3
    • 2.3.0-1ubuntu3.2
    • 2.3.0-1ubuntu3.3
    • 2.3.0-1ubuntu3.4
    • 2.3.0-1ubuntu3.4+esm1
    • 2.3.0-1ubuntu3.4+esm2
    • 2.3.0-1ubuntu3.4+esm3
    • 2.3.0-1ubuntu3.4+esm4
    • 2.3.0-1ubuntu3.4+esm5
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • pillow Ubuntu:Pro:16.04:LTS

    Versions
    • 2.9.0-1
    • 3.0.0-1
    • 3.0.0-1build1
    • 3.1.0-1
    • 3.1.1-1
    • 3.1.2-0ubuntu1
    • 3.1.2-0ubuntu1.1
    • 3.1.2-0ubuntu1.3
    • 3.1.2-0ubuntu1.4
    • 3.1.2-0ubuntu1.5
    • 3.1.2-0ubuntu1.6
    • 3.1.2-0ubuntu1.6+esm1
    • 3.1.2-0ubuntu1.6+esm2
    • 3.1.2-0ubuntu1.6+esm3
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • pillow Ubuntu:Pro:18.04:LTS

    Versions
    • 4.1.1-3build2
    • 4.3.0-2ubuntu1
    • 5.0.0-1
    • 5.1.0-1
    • 5.1.0-1ubuntu0.2
    • 5.1.0-1ubuntu0.3
    • 5.1.0-1ubuntu0.4
    • 5.1.0-1ubuntu0.5
    • 5.1.0-1ubuntu0.6
    • 5.1.0-1ubuntu0.7
    • 5.1.0-1ubuntu0.8
    • 5.1.0-1ubuntu0.8+esm1
    • 5.1.0-1ubuntu0.8+esm2
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • pillow Ubuntu:Pro:20.04:LTS

    Versions
    • 6.1.0-1
    • 6.1.0-1build1
    • 6.2.1-2
    • 7.0.0-4
    • 7.0.0-4build1
    • 7.0.0-4ubuntu0.1
    • 7.0.0-4ubuntu0.2
    • 7.0.0-4ubuntu0.3
    • 7.0.0-4ubuntu0.4
    • 7.0.0-4ubuntu0.5
    • 7.0.0-4ubuntu0.6
    • 7.0.0-4ubuntu0.7
    • 7.0.0-4ubuntu0.8
    • 7.0.0-4ubuntu0.9
    • 7.0.0-4ubuntu0.9+esm1
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • pillow-python2 Ubuntu:Pro:20.04:LTS

    Versions
    • 6.2.1-3~build1
    • 6.2.1-3
    • 6.2.1-3ubuntu0.1~esm1
    • 6.2.1-3ubuntu0.1~esm2
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • pillow Ubuntu:22.04:LTS

    Versions
    • 8.1.2+dfsg-0.3
    • 9.0.0-1
    • 9.0.1-1
    • 9.0.1-1build1
    • 9.0.1-1ubuntu0.1
    • 9.0.1-1ubuntu0.2
    • 9.0.1-1ubuntu0.3
    • 9.0.1-1ubuntu0.4
    • 9.0.1-1ubuntu0.5
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • pillow Ubuntu:24.04:LTS

    Versions
    • 10.0.0-1
    • 10.1.0-1
    • 10.2.0-1
    • 10.2.0-1build1
    • 10.2.0-1ubuntu1
    • 10.2.0-1ubuntu1.2
    • 10.2.0-1ubuntu1.3
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • pillow Ubuntu:26.10

    Versions
    • 12.1.1-2ubuntu1
    • 12.3.0-1ubuntu1
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • pillow Ubuntu:26.04:LTS

    Versions
    • 11.3.0-1ubuntu1
    • 11.3.0-1ubuntu2
    • 12.0.0-1ubuntu1
    • 12.1.1-1ubuntu1
    • 12.1.1-2ubuntu1
    • 12.1.1-2ubuntu1.1
    • 12.1.1-2ubuntu1.2
    • 12.1.1-2ubuntu1.3
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

Original sources

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