NIXPKGS-2026-1248

GitHub issue published on

Permalink CVE-2026-41313

updated 5 hours ago by @LeSuisse Activity log

Created automatic suggestion 11 hours ago
@LeSuisse ignored package capypdf 7 hours ago
@LeSuisse ignored reference https://g… 7 hours ago
@LeSuisse ignored
9 packages
- python312Packages.pypdf2
- python312Packages.pypdf3
- python313Packages.pypdf2
- python313Packages.pypdf3
- python314Packages.pypdf2
- python314Packages.pypdf3
- python312Packages.pypdfium2
- python314Packages.pypdfium2
- python313Packages.pypdfium2
7 hours ago
@LeSuisse accepted 7 hours ago
@LeSuisse published on GitHub 5 hours ago

pypdf: Possible long runtimes for wrong size values in incremental mode

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 long runtimes. This requires loading a PDF with a large trailer `/Size` value in incremental mode. This has been fixed in pypdf 6.10.2. As a workaround, one may apply the changes from the patch manually.

References

https://github.com/py-pdf/pypdf/security/advisories/GHSA-4pxv-j86v-mhcw x_refsource_CONFIRM
https://github.com/py-pdf/pypdf/pull/3735 x_refsource_MISC
https://github.com/py-pdf/pypdf/commit/c50a0104cf083356f7c7f5d61410466a57f5c88a x_refsource_MISC

Ignored references (1)

https://github.com/py-pdf/pypdf/releases/tag/6.10.2 x_refsource_MISC

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

nixos-25.11 6.10.0
- nixos-25.11-small 6.10.0
- nixpkgs-25.11-darwin 6.10.0

pkgs.python313Packages.pypdf

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

nixos-unstable 6.10.0
- nixpkgs-unstable 6.10.0
- nixos-unstable-small 6.10.0
nixos-25.11 6.10.0
- nixos-25.11-small 6.10.0
- nixpkgs-25.11-darwin 6.10.0

pkgs.python314Packages.pypdf

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

nixos-unstable 6.10.0
- nixpkgs-unstable 6.10.0
- nixos-unstable-small 6.10.0

Ignored packages (10)

pkgs.capypdf

Fully color managed PDF generation library

nixos-unstable 0.20.0
- nixpkgs-unstable 0.20.0
- nixos-unstable-small 0.20.0
nixos-25.11 0.18.0
- nixos-25.11-small 0.18.0
- nixpkgs-25.11-darwin 0.18.0

pkgs.python312Packages.pypdf2

Pure-Python library built as a PDF toolkit

nixos-25.11 pypdf2-3.0.1
- nixos-25.11-small pypdf2-3.0.1
- nixpkgs-25.11-darwin pypdf2-3.0.1

pkgs.python312Packages.pypdf3

Pure-Python library built as a PDF toolkit

nixos-25.11 pypdf3-1.0.6
- nixos-25.11-small pypdf3-1.0.6
- nixpkgs-25.11-darwin pypdf3-1.0.6

pkgs.python313Packages.pypdf2

Pure-Python library built as a PDF toolkit

nixos-unstable pypdf2-3.0.1
- nixpkgs-unstable pypdf2-3.0.1
- nixos-unstable-small pypdf2-3.0.1
nixos-25.11 pypdf2-3.0.1
- nixos-25.11-small pypdf2-3.0.1
- nixpkgs-25.11-darwin pypdf2-3.0.1

pkgs.python313Packages.pypdf3

Pure-Python library built as a PDF toolkit

nixos-unstable pypdf3-1.0.6
- nixpkgs-unstable pypdf3-1.0.6
- nixos-unstable-small pypdf3-1.0.6
nixos-25.11 pypdf3-1.0.6
- nixos-25.11-small pypdf3-1.0.6
- nixpkgs-25.11-darwin pypdf3-1.0.6