Nixpkgs security tracker

Login with GitHub

Details of issue NIXPKGS-2026-1234

NIXPKGS-2026-1234
published on
updated 6 days, 11 hours ago by @LeSuisse Activity log
  • Created suggestion
  • @LeSuisse ignored
    10 packages
    • capypdf
    • python312Packages.pypdf2
    • python312Packages.pypdf3
    • python313Packages.pypdf2
    • python313Packages.pypdf3
    • python314Packages.pypdf2
    • python314Packages.pypdf3
    • python312Packages.pypdfium2
    • python313Packages.pypdfium2
    • python314Packages.pypdfium2
  • @LeSuisse accepted
  • @LeSuisse published on GitHub
pypdf: Manipulated FlateDecode image dimensions can exhaust RAM

pypdf is a free and open-source pure-python PDF library. An attacker who uses a vulnerability present in versions prior to 6.10.2 can craft a PDF which leads to the RAM being exhausted. This requires accessing an image using `/FlateDecode` with large size values. This has been fixed in pypdf 6.10.2. As a workaround, one may apply the changes from the patch manually.

Affected products

pypdf
  • ==< 6.10.2

Matching in nixpkgs

pkgs.python312Packages.pypdf

Pure-python PDF library capable of splitting, merging, cropping, and transforming the pages of PDF files

pkgs.python314Packages.pypdf

Pure-python PDF library capable of splitting, merging, cropping, and transforming the pages of PDF files

Ignored packages (10)

Package maintainers