Nixpkgs security tracker
NIXPKGS-2026-0014
published on
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CVE-2026-0992
2.9 LOW
- CVSS version (CVSS): 3.1
- Attack Vector (AV): Local (L)
- Attack Complexity (AC): High (H)
- Privileges Required (PR): None (N)
- User Interaction (UI): None (N)
- Scope (S): Unchanged (U)
- Confidentiality (C): None (N)
- Integrity (I): None (N)
- Availability (A): Low (L)
- Modified Attack Vector (MAV): Local (L)
- Modified Attack Complexity (MAC): High (H)
- 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): Low (L)
by @LeSuisse Activity log
- Created suggestion
-
@LeSuisse
ignored
8 packages
- libxml2Python
- sbclPackages.cl-libxml2
- perlPackages.AlienLibxml2
- python312Packages.libxml2
- python313Packages.libxml2
- perl538Packages.AlienLibxml2
- perl540Packages.AlienLibxml2
- tests.pkg-config.defaultPkgConfigPackages."libxml-2.0"
- @LeSuisse accepted
- @LeSuisse published on GitHub
Libxml2: libxml2: denial of service via crafted xml catalogs
A flaw was found in the libxml2 library. This uncontrolled resource consumption vulnerability occurs when processing XML catalogs that contain repeated <nextCatalog> elements pointing to the same downstream catalog. A remote attacker can exploit this by supplying crafted catalogs, causing the parser to redundantly traverse catalog chains. This leads to excessive CPU consumption and degrades application availability, resulting in a denial-of-service condition.
References
Affected products
rhcos
libxml2
Matching in nixpkgs
Ignored packages (8)
pkgs.libxml2Python
None
pkgs.sbclPackages.cl-libxml2
None
-
nixos-unstable libxml2-20130615-git
- nixpkgs-unstable libxml2-20130615-git
- nixos-unstable-small libxml2-20130615-git
pkgs.perlPackages.AlienLibxml2
Install the C libxml2 library on your system
-
nixos-unstable Libxml2-0.19
- nixpkgs-unstable Libxml2-0.19
- nixos-unstable-small Libxml2-0.19
pkgs.python312Packages.libxml2
XML parsing library for C
pkgs.python313Packages.libxml2
XML parsing library for C
pkgs.perl538Packages.AlienLibxml2
Install the C libxml2 library on your system
-
nixos-unstable Libxml2-0.19
- nixpkgs-unstable Libxml2-0.19
- nixos-unstable-small Libxml2-0.19
pkgs.perl540Packages.AlienLibxml2
Install the C libxml2 library on your system
-
nixos-unstable Libxml2-0.19
- nixpkgs-unstable Libxml2-0.19
- nixos-unstable-small Libxml2-0.19
pkgs.tests.pkg-config.defaultPkgConfigPackages.%22libxml-2.0%22
Test whether libxml2-2.13.8 exposes pkg-config modules libxml-2.0
Package maintainers
-
@jtojnar Jan Tojnar <jtojnar@gmail.com>
-
@gepbird Gutyina Gergő <gutyina.gergo.2@gmail.com>