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CVE-2026-40183

CVE-2026-40183 · ImageMagick: Heap buffer overflow when encoding JXL image with a 16-bit float

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

ImageMagick is free and open-source software used for editing and manipulating digital images. In versions below 7.1.2-19, the JXL encoder has an heap write overflow when a user specifies that the image should be encoded as 16 bit floats. This issue has been fixed in version 7.1.2-19.

CVSS 5.5 · Medium · EPSS 0.2% · Fix available

Published
Updated

Stack: system

Affected products and versions

  • imagemagick

    Versions
    • < 7.1.2-19: Affected

    No fix published

  • imagemagick Debian:13

    Versions
    • 8:7.1.1.43+dfsg1-1
    • 8:7.1.1.43+dfsg1-1+deb13u1
    • 8:7.1.1.43+dfsg1-1+deb13u2
    • 8:7.1.1.43+dfsg1-1+deb13u3
    • 8:7.1.1.43+dfsg1-1+deb13u4
    • 8:7.1.1.43+dfsg1-1+deb13u5
    • 8:7.1.1.43+dfsg1-1+deb13u6
    • 8:7.1.1.43+dfsg1-1+deb13u7
    Affected ranges
    • ECOSYSTEM: < 8:7.1.1.43+dfsg1-1+deb13u8

    Update to 8:7.1.1.43+dfsg1-1+deb13u8

  • imagemagick Debian:14

    Versions
    • 8:7.1.1.43+dfsg1-1
    • 8:7.1.1.46+dfsg1-1
    • 8:7.1.1.47+dfsg1-1
    • 8:7.1.1.47+dfsg1-2
    • 8:7.1.2.1+dfsg1-1
    • 8:7.1.2.12+dfsg1-1
    • 8:7.1.2.13+dfsg1-1
    • 8:7.1.2.15+dfsg1-1
    • 8:7.1.2.15+dfsg1-2
    • 8:7.1.2.16+dfsg1-1
    • 8:7.1.2.18+dfsg1-1
    • 8:7.1.2.3+dfsg1-1
    • 8:7.1.2.7+dfsg1-1
    • 8:7.1.2.8+dfsg1-1
    Affected ranges
    • ECOSYSTEM: < 8:7.1.2.19+dfsg1-1

    Update to 8:7.1.2.19+dfsg1-1

  • imagemagick Ubuntu:25.10

    Versions
    • 8:7.1.1.43+dfsg1-1
    • 8:7.1.1.43+dfsg1-1ubuntu1
    • 8:7.1.1.43+dfsg1-1ubuntu2
    • 8:7.1.2.3+dfsg1-1
    • 8:7.1.2.3+dfsg1-1ubuntu0.1
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • imagemagick Ubuntu:26.10

    Versions
    • 8:7.1.2.18+dfsg1-1
    • 8:7.1.2.25+dfsg1-2
    • 8:7.1.2.27+dfsg1-1
    • 8:7.1.2.31+dfsg1-1
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • imagemagick Ubuntu:Pro:26.04:LTS

    Versions
    • 8:7.1.2.3+dfsg1-1
    • 8:7.1.2.8+dfsg1-1
    • 8:7.1.2.12+dfsg1-1
    • 8:7.1.2.13+dfsg1-1
    • 8:7.1.2.15+dfsg1-1
    • 8:7.1.2.16+dfsg1-1
    • 8:7.1.2.18+dfsg1-1
    • 8:7.1.2.18+dfsg1-1ubuntu0.1~esm1
    • 8:7.1.2.18+dfsg1-1ubuntu0.1~esm2
    • 8:7.1.2.18+dfsg1-1ubuntu0.1~esm3
    • 8:7.1.2.18+dfsg1-1ubuntu0.1~esm4
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

Original sources

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