Nixpkgs Security Tracker

Login with GitHub

Suggestions search

Untriaged

Filter by:

With package: capypdf

Found 2 matching suggestions

Permalink CVE-2026-27026

created 2 weeks, 1 day ago

pypdf possibly has long runtimes for malformed FlateDecode streams

pypdf is a free and open-source pure-python PDF library. Prior to 6.7.1, an attacker who uses this vulnerability can craft a PDF which leads to long runtimes. This requires a malformed /FlateDecode stream, where the byte-by-byte decompression is used. This vulnerability is fixed in 6.7.1.

References

https://github.com/py-pdf/pypdf/security/advisories/GHSA-9mvc-8737-8j8h x_refsource_CONFIRM
https://github.com/py-pdf/pypdf/pull/3644 x_refsource_MISC
https://github.com/py-pdf/pypdf/commit/7905842d833f899f1d3228af7e7467ad80277016 x_refsource_MISC
https://github.com/py-pdf/pypdf/releases/tag/6.7.1 x_refsource_MISC

Affected products

pypdf

==< 6.7.1

Matching in nixpkgs

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.pypdf

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

nixos-25.11 6.6.0
- nixos-25.11-small 6.6.0
- nixpkgs-25.11-darwin 6.6.0

pkgs.python313Packages.pypdf

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

nixos-unstable 6.7.0
- nixpkgs-unstable 6.7.0
- nixos-unstable-small 6.7.0
nixos-25.11 6.6.0
- nixos-25.11-small 6.6.0
- nixpkgs-25.11-darwin 6.6.0

pkgs.python314Packages.pypdf

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

nixos-unstable 6.7.0
- nixpkgs-unstable 6.7.0
- nixos-unstable-small 6.7.0

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

pkgs.python314Packages.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

pkgs.python314Packages.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

pkgs.python312Packages.pypdfium2

Python bindings to PDFium

nixos-25.11 pypdfium2-5.0.0
- nixos-25.11-small pypdfium2-5.0.0
- nixpkgs-25.11-darwin pypdfium2-5.0.0

pkgs.python313Packages.pypdfium2

Python bindings to PDFium

nixos-unstable pypdfium2-5.3.0
- nixpkgs-unstable pypdfium2-5.3.0
- nixos-unstable-small pypdfium2-5.4.0
nixos-25.11 pypdfium2-5.0.0
- nixos-25.11-small pypdfium2-5.0.0
- nixpkgs-25.11-darwin pypdfium2-5.0.0

pkgs.python314Packages.pypdfium2

Python bindings to PDFium

nixos-unstable pypdfium2-5.3.0
- nixpkgs-unstable pypdfium2-5.3.0
- nixos-unstable-small pypdfium2-5.4.0

Package maintainers

@jtojnar Jan Tojnar <jtojnar@gmail.com>
@javaes Jan van Esdonk <jan+dev@vanesdonk.de>
@desiderius Didier J. Devroye <didier@devroye.name>
@ambroisie Bruno BELANYI <bruno.nixpkgs@belanyi.fr>
@booxter Ihar Hrachyshka <ihar.hrachyshka@gmail.com>

Permalink CVE-2026-24688

created 1 month, 1 week ago

pypdf has possible Infinite Loop when processing outlines/bookmarks

pypdf is a free and open-source pure-python PDF library. An attacker who uses an infinite loop vulnerability that is present in versions prior to 6.6.2 can craft a PDF which leads to an infinite loop. This requires accessing the outlines/bookmarks. This has been fixed in pypdf 6.6.2. If projects cannot upgrade yet, consider applying the changes from PR #3610 manually.

References

https://github.com/py-pdf/pypdf/pull/3610 x_refsource_MISC
https://github.com/py-pdf/pypdf/commit/b1282f8dcdc1a7b41ceab6740ffddfdf31b1fec1 x_refsource_MISC
https://github.com/py-pdf/pypdf/releases/tag/6.6.2 x_refsource_MISC
https://github.com/py-pdf/pypdf/security/advisories/GHSA-2q4j-m29v-hq73 x_refsource_CONFIRM

Affected products

pypdf

==< 6.6.2

Matching in nixpkgs

pkgs.capypdf

Fully color managed PDF generation library

nixos-unstable 0.18.0
- nixpkgs-unstable 0.18.0
- nixos-unstable-small 0.18.0

pkgs.python312Packages.pypdf

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

nixos-unstable 6.1.0
- nixpkgs-unstable 6.1.0
- nixos-unstable-small 6.3.0

pkgs.python313Packages.pypdf

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

nixos-unstable 6.1.0
- nixpkgs-unstable 6.1.0
- nixos-unstable-small 6.3.0

pkgs.python312Packages.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

pkgs.python312Packages.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

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

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

pkgs.python312Packages.pypdfium2

Python bindings to PDFium

nixos-unstable pypdfium2-5.0.0
- nixpkgs-unstable pypdfium2-5.0.0
- nixos-unstable-small pypdfium2-5.1.0

pkgs.python313Packages.pypdfium2

Python bindings to PDFium

nixos-unstable pypdfium2-5.0.0
- nixpkgs-unstable pypdfium2-5.0.0
- nixos-unstable-small pypdfium2-5.1.0

Package maintainers

@jtojnar Jan Tojnar <jtojnar@gmail.com>
@javaes Jan van Esdonk <jan+dev@vanesdonk.de>
@desiderius Didier J. Devroye <didier@devroye.name>
@ambroisie Bruno BELANYI <bruno.nixpkgs@belanyi.fr>
@booxter Ihar Hrachyshka <ihar.hrachyshka@gmail.com>

1