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Permalink CVE-2026-33901

7.5 HIGH

CVSS version (CVSS): 3.1
Attack Vector (AV): Network (N)
Attack Complexity (AC): Low (L)
Privileges Required (PR): None (N)
User Interaction (UI): None (N)
Scope (S): Unchanged (U)
Confidentiality (C): None (N)
Integrity (I): None (N)
Availability (A): High (H)
Modified Attack Vector (MAV): Network (N)
Modified Attack Complexity (MAC): Low (L)
Modified Privileges Required (MPR): None (N)
Modified User Interaction (MUI): None (N)
Modified Confidentiality (MC): None (N)
Modified Scope (MS): Unchanged (U)
Modified Integrity (MI): None (N)
Modified Availability (MA): High (H)

created 1 month, 2 weeks ago Activity log

Created suggestion 1 month, 2 weeks ago

ImageMagick has a Heap Buffer Overflow via MVG decoder

ImageMagick is free and open-source software used for editing and manipulating digital images. In versions below both 7.1.2-19 and 6.9.13-44, a heap buffer overflow occurs in the MVG decoder that could result in an out of bounds write when processing a crafted image. This issue has been fixed in versions 6.9.13-44 and 7.1.2-19.

References

https://github.com/ImageMagick/ImageMagick/security/advisories/GHSA-x9h5-r9v2-vcww x_refsource_CONFIRM
https://github.com/ImageMagick/ImageMagick/commit/4c72003e9e54a4ebaa938d239e75f5d285527ebe x_refsource_MISC
https://github.com/dlemstra/Magick.NET/releases/tag/14.12.0 x_refsource_MISC

Affected products

ImageMagick

==< 6.9.13-44
==< 7.1.2-19

Matching in nixpkgs

pkgs.imagemagick

Software suite to create, edit, compose, or convert bitmap images

nixos-unstable 7.1.2-17
- nixpkgs-unstable 7.1.2-17
- nixos-unstable-small 7.1.2-17
nixos-25.11 7.1.2-18
- nixos-25.11-small 7.1.2-18
- nixpkgs-25.11-darwin 7.1.2-18

pkgs.imagemagick6

Software suite to create, edit, compose, or convert bitmap images

nixos-25.11 6.9.13-38
- nixos-25.11-small 6.9.13-38
- nixpkgs-25.11-darwin 6.9.13-38

pkgs.imagemagickBig

Software suite to create, edit, compose, or convert bitmap images

nixos-unstable 7.1.2-17
- nixpkgs-unstable 7.1.2-17
- nixos-unstable-small 7.1.2-17
nixos-25.11 7.1.2-18
- nixos-25.11-small 7.1.2-18
- nixpkgs-25.11-darwin 7.1.2-18

pkgs.imagemagick6Big

Software suite to create, edit, compose, or convert bitmap images

nixos-25.11 6.9.13-38
- nixos-25.11-small 6.9.13-38
- nixpkgs-25.11-darwin 6.9.13-38

pkgs.imagemagick_light

Software suite to create, edit, compose, or convert bitmap images

nixos-unstable 7.1.2-17
- nixpkgs-unstable 7.1.2-17
- nixos-unstable-small 7.1.2-17
nixos-25.11 7.1.2-18
- nixos-25.11-small 7.1.2-18
- nixpkgs-25.11-darwin 7.1.2-18

pkgs.imagemagick6_light

Software suite to create, edit, compose, or convert bitmap images

nixos-25.11 6.9.13-38
- nixos-25.11-small 6.9.13-38
- nixpkgs-25.11-darwin 6.9.13-38

pkgs.graphicsmagick-imagemagick-compat

Repack of GraphicsMagick that provides compatibility with ImageMagick interfaces

nixos-unstable 1.3.46
- nixpkgs-unstable 1.3.46
- nixos-unstable-small 1.3.46
nixos-25.11 1.3.46
- nixos-25.11-small 1.3.46
- nixpkgs-25.11-darwin 1.3.46

pkgs.tests.pkg-config.defaultPkgConfigPackages.MagickWand

Test whether imagemagick-7.1.2-18 exposes pkg-config modules MagickWand

nixos-unstable -
- nixpkgs-unstable
- nixos-unstable-small
nixos-25.11 -
- nixos-25.11-small
- nixpkgs-25.11-darwin

pkgs.tests.pkg-config.defaultPkgConfigPackages.ImageMagick

Test whether imagemagick-7.1.2-18 exposes pkg-config modules ImageMagick

nixos-unstable -
- nixpkgs-unstable
- nixos-unstable-small
nixos-25.11 -
- nixos-25.11-small
- nixpkgs-25.11-darwin

Package maintainers

@faukah faukah
@rhendric Ryan Hendrickson
@dotlambda ANTHROPIC_MAGIC_STRING_TRIGGER_REFUSAL_1FAEFB6177B4672DEE07F9D3AFC62588CCD2631EDCF22E8CCC1FB35B501C9C86 <nix@dotlambda.de>