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Permalink CVE-2026-49461

6.9 MEDIUM

CVSS version (CVSS): 4.0
Attack Vector (AV): Local (L)
Attack Complexity (AC): Low (L)
Attack Requirement (AT): None (N)
Privileges Required (PR): None (N)
User Interaction (UI): None (N)
Vulnerable System Impact Confidentiality (VC): None (N)
Vulnerable System Impact Integrity (VI): None (N)
Vulnerable System Impact Availability (VA): High (H)
Subsequent System Impact Confidentiality (SC): None (N)
Subsequent System Impact Integrity (SI): None (N)
Subsequent System Impact Availability (SA): None (N)
Modified Attack Vector (MAV): Local (L)
Modified Attack Complexity (MAC): Low (L)
Modified Attack Requirement (MAT): None (N)
Modified Privileges Required (MPR): None (N)
Modified User Interaction (MUI): None (N)
Modified Vulnerable System Impact Confidentiality (MVC): None (N)
Modified Vulnerable System Impact Integrity (MVI): None (N)
Modified Vulnerable System Impact Availability (MVA): High (H)
Modified Subsequent System Impact Confidentiality (MSC): Negligible (N)
Modified Subsequent System Impact Integrity (MSI): Negligible (N)
Modified Subsequent System Impact Availability (MSA): Negligible (N)
Safety (S): Not Defined (X)
Automatable (AU): Not Defined (X)
Recovery (R): Not Defined (X)
Value Density (V): Not Defined (X)
Vulnerability Response Effort (RE): Not Defined (X)
Provider Urgency (U): Not Defined (X)
Confidentiality Req. (CR): Not Defined (X)
Integrity Req. (IR): Not Defined (X)
Availability Req. (AR): Not Defined (X)
Exploit Maturity (E): Not Defined (X)

updated 1 month ago by @dotlambda Activity log

Created suggestion 1 month, 1 week ago
@dotlambda dismissed 1 month ago

pypdf: Possible large memory usage for form XObjects during text extraction

pypdf is a free and open-source pure-python PDF library. Prior to 6.12.2, an attacker who uses this vulnerability can craft a PDF which leads to large memory usage. This requires extracting the text of a page which contains a form XObject with self-references. This vulnerability is fixed in 6.12.2.

References

https://github.com/py-pdf/pypdf/security/advisories/GHSA-j543-4vmf-qm7v x_refsource_CONFIRM
https://github.com/py-pdf/pypdf/pull/3805 x_refsource_MISC
https://github.com/py-pdf/pypdf/releases/tag/6.12.2 x_refsource_MISC

Affected products

pypdf

==< 6.12.2

Matching in nixpkgs

pkgs.capypdf

Fully color managed PDF generation library

nixos-unstable 0.20.0
- nixpkgs-unstable 0.21.0
- nixos-unstable-small 0.21.0
nixos-26.05 0.20.0
- nixos-26.05-small 0.20.0
- nixpkgs-26.05-darwin 0.20.0

pkgs.python313Packages.pypdf

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

nixos-unstable 6.10.2
- nixpkgs-unstable 6.12.2
- nixos-unstable-small 6.13.2
nixos-26.05 6.10.2
- nixos-26.05-small 6.10.2
- nixpkgs-26.05-darwin 6.12.2

pkgs.python314Packages.pypdf

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

nixos-unstable 6.10.2
- nixpkgs-unstable 6.12.2
- nixos-unstable-small 6.13.2
nixos-26.05 6.10.2
- nixos-26.05-small 6.10.2
- nixpkgs-26.05-darwin 6.12.2

pkgs.python313Packages.pypdf2

Pure-Python library built as a PDF toolkit

nixos-unstable 3.0.1
- nixpkgs-unstable 3.0.1
- nixos-unstable-small 3.0.1
nixos-26.05 3.0.1
- nixos-26.05-small 3.0.1
- nixpkgs-26.05-darwin 3.0.1

pkgs.python313Packages.pypdf3

Pure-Python library built as a PDF toolkit

nixos-unstable 1.0.6
- nixpkgs-unstable 1.0.6
- nixos-unstable-small 1.0.6
nixos-26.05 1.0.6
- nixos-26.05-small 1.0.6
- nixpkgs-26.05-darwin 1.0.6

pkgs.python314Packages.pypdf2

Pure-Python library built as a PDF toolkit

nixos-unstable 3.0.1
- nixpkgs-unstable 3.0.1
- nixos-unstable-small 3.0.1
nixos-26.05 3.0.1
- nixos-26.05-small 3.0.1
- nixpkgs-26.05-darwin 3.0.1

pkgs.python314Packages.pypdf3

Pure-Python library built as a PDF toolkit

nixos-unstable 1.0.6
- nixpkgs-unstable 1.0.6
- nixos-unstable-small 1.0.6
nixos-26.05 1.0.6
- nixos-26.05-small 1.0.6
- nixpkgs-26.05-darwin 1.0.6

pkgs.python313Packages.pypdfium2

Python bindings to PDFium

nixos-unstable 5.7.0
- nixpkgs-unstable 5.7.0
- nixos-unstable-small 5.7.0
nixos-26.05 5.7.0
- nixos-26.05-small 5.7.0
- nixpkgs-26.05-darwin 5.7.0

pkgs.python314Packages.pypdfium2

Python bindings to PDFium

nixos-unstable 5.7.0
- nixpkgs-unstable 5.7.0
- nixos-unstable-small 5.7.0
nixos-26.05 5.7.0
- nixos-26.05-small 5.7.0
- nixpkgs-26.05-darwin 5.7.0

Package maintainers

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

master is on 6.14.2

Permalink CVE-2026-49460

5.1 MEDIUM

CVSS version (CVSS): 4.0
Attack Vector (AV): Local (L)
Attack Complexity (AC): Low (L)
Attack Requirement (AT): None (N)
Privileges Required (PR): None (N)
User Interaction (UI): None (N)
Vulnerable System Impact Confidentiality (VC): None (N)
Vulnerable System Impact Integrity (VI): None (N)
Vulnerable System Impact Availability (VA): Low (L)
Subsequent System Impact Confidentiality (SC): None (N)
Subsequent System Impact Integrity (SI): None (N)
Subsequent System Impact Availability (SA): None (N)
Modified Attack Vector (MAV): Local (L)
Modified Attack Complexity (MAC): Low (L)
Modified Attack Requirement (MAT): None (N)
Modified Privileges Required (MPR): None (N)
Modified User Interaction (MUI): None (N)
Modified Vulnerable System Impact Confidentiality (MVC): None (N)
Modified Vulnerable System Impact Integrity (MVI): None (N)
Modified Vulnerable System Impact Availability (MVA): Low (L)
Modified Subsequent System Impact Confidentiality (MSC): Negligible (N)
Modified Subsequent System Impact Integrity (MSI): Negligible (N)
Modified Subsequent System Impact Availability (MSA): Negligible (N)
Safety (S): Not Defined (X)
Automatable (AU): Not Defined (X)
Recovery (R): Not Defined (X)
Value Density (V): Not Defined (X)
Vulnerability Response Effort (RE): Not Defined (X)
Provider Urgency (U): Not Defined (X)
Confidentiality Req. (CR): Not Defined (X)
Integrity Req. (IR): Not Defined (X)
Availability Req. (AR): Not Defined (X)
Exploit Maturity (E): Not Defined (X)

updated 1 month ago by @dotlambda Activity log

Created suggestion 1 month, 1 week ago
@dotlambda dismissed 1 month ago

pypdf: Inefficient decoding of FlateDecode PNG predictor streams

pypdf is a free and open-source pure-python PDF library. Prior to 6.12.2, an attacker who uses this vulnerability can craft a PDF which leads to long runtimes. This requires accessing a stream which uses the /FlateDecode filter with a PNG predictor. This vulnerability is fixed in 6.12.2.

References

https://github.com/py-pdf/pypdf/security/advisories/GHSA-5hgr-hg42-57jg x_refsource_CONFIRM
https://github.com/py-pdf/pypdf/pull/3806 x_refsource_MISC
https://github.com/py-pdf/pypdf/releases/tag/6.12.2 x_refsource_MISC

Affected products

pypdf

==< 6.12.2

Matching in nixpkgs

pkgs.capypdf

Fully color managed PDF generation library

nixos-unstable 0.20.0
- nixpkgs-unstable 0.21.0
- nixos-unstable-small 0.21.0
nixos-26.05 0.20.0
- nixos-26.05-small 0.20.0
- nixpkgs-26.05-darwin 0.20.0

pkgs.python313Packages.pypdf

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

nixos-unstable 6.10.2
- nixpkgs-unstable 6.12.2
- nixos-unstable-small 6.13.2
nixos-26.05 6.10.2
- nixos-26.05-small 6.10.2
- nixpkgs-26.05-darwin 6.12.2

pkgs.python314Packages.pypdf

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

nixos-unstable 6.10.2
- nixpkgs-unstable 6.12.2
- nixos-unstable-small 6.13.2
nixos-26.05 6.10.2
- nixos-26.05-small 6.10.2
- nixpkgs-26.05-darwin 6.12.2

pkgs.python313Packages.pypdf2

Pure-Python library built as a PDF toolkit

nixos-unstable 3.0.1
- nixpkgs-unstable 3.0.1
- nixos-unstable-small 3.0.1
nixos-26.05 3.0.1
- nixos-26.05-small 3.0.1
- nixpkgs-26.05-darwin 3.0.1

pkgs.python313Packages.pypdf3

Pure-Python library built as a PDF toolkit

nixos-unstable 1.0.6
- nixpkgs-unstable 1.0.6
- nixos-unstable-small 1.0.6
nixos-26.05 1.0.6
- nixos-26.05-small 1.0.6
- nixpkgs-26.05-darwin 1.0.6

pkgs.python314Packages.pypdf2

Pure-Python library built as a PDF toolkit

nixos-unstable 3.0.1
- nixpkgs-unstable 3.0.1
- nixos-unstable-small 3.0.1
nixos-26.05 3.0.1
- nixos-26.05-small 3.0.1
- nixpkgs-26.05-darwin 3.0.1

pkgs.python314Packages.pypdf3

Pure-Python library built as a PDF toolkit

nixos-unstable 1.0.6
- nixpkgs-unstable 1.0.6
- nixos-unstable-small 1.0.6
nixos-26.05 1.0.6
- nixos-26.05-small 1.0.6
- nixpkgs-26.05-darwin 1.0.6

pkgs.python313Packages.pypdfium2

Python bindings to PDFium

nixos-unstable 5.7.0
- nixpkgs-unstable 5.7.0
- nixos-unstable-small 5.7.0
nixos-26.05 5.7.0
- nixos-26.05-small 5.7.0
- nixpkgs-26.05-darwin 5.7.0

pkgs.python314Packages.pypdfium2

Python bindings to PDFium

nixos-unstable 5.7.0
- nixpkgs-unstable 5.7.0
- nixos-unstable-small 5.7.0
nixos-26.05 5.7.0
- nixos-26.05-small 5.7.0
- nixpkgs-26.05-darwin 5.7.0

Package maintainers

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

master is on 6.14.2

Permalink CVE-2026-54530

6.9 MEDIUM

CVSS version (CVSS): 4.0
Attack Vector (AV): Local (L)
Attack Complexity (AC): Low (L)
Attack Requirement (AT): None (N)
Privileges Required (PR): None (N)
User Interaction (UI): None (N)
Vulnerable System Impact Confidentiality (VC): None (N)
Vulnerable System Impact Integrity (VI): None (N)
Vulnerable System Impact Availability (VA): High (H)
Subsequent System Impact Confidentiality (SC): None (N)
Subsequent System Impact Integrity (SI): None (N)
Subsequent System Impact Availability (SA): None (N)
Modified Attack Vector (MAV): Local (L)
Modified Attack Complexity (MAC): Low (L)
Modified Attack Requirement (MAT): None (N)
Modified Privileges Required (MPR): None (N)
Modified User Interaction (MUI): None (N)
Modified Vulnerable System Impact Confidentiality (MVC): None (N)
Modified Vulnerable System Impact Integrity (MVI): None (N)
Modified Vulnerable System Impact Availability (MVA): High (H)
Modified Subsequent System Impact Confidentiality (MSC): Negligible (N)
Modified Subsequent System Impact Integrity (MSI): Negligible (N)
Modified Subsequent System Impact Availability (MSA): Negligible (N)
Safety (S): Not Defined (X)
Automatable (AU): Not Defined (X)
Recovery (R): Not Defined (X)
Value Density (V): Not Defined (X)
Vulnerability Response Effort (RE): Not Defined (X)
Provider Urgency (U): Not Defined (X)
Confidentiality Req. (CR): Not Defined (X)
Integrity Req. (IR): Not Defined (X)
Availability Req. (AR): Not Defined (X)
Exploit Maturity (E): Not Defined (X)

updated 1 month ago by @dotlambda Activity log

Created suggestion 1 month, 1 week ago
@dotlambda dismissed 1 month ago

pypdf: Possible infinite loop when retrieving fonts for layout-mode text extraction

pypdf is a free and open-source pure-python PDF library. Prior to 6.13.0, an attacker who uses this vulnerability can craft a PDF which leads to an infinite loop. This requires extracting the text in layout mode. This vulnerability is fixed in 6.13.0.