Nixpkgs security tracker

Untriaged

Permalink CVE-2026-74860

8.5 HIGH

CVSS version (CVSS): 3.1
Attack Vector (AV): Network (N)
Attack Complexity (AC): High (H)
Privileges Required (PR): Low (L)
User Interaction (UI): None (N)
Scope (S): Changed (C)
Confidentiality (C): High (H)
Integrity (I): High (H)
Availability (A): High (H)
Modified Attack Vector (MAV): Network (N)
Modified Attack Complexity (MAC): High (H)
Modified Privileges Required (MPR): Low (L)
Modified User Interaction (MUI): None (N)
Modified Confidentiality (MC): High (H)
Modified Scope (MS): Changed (C)
Modified Integrity (MI): High (H)
Modified Availability (MA): High (H)

created 1 week, 2 days ago Activity log

Created suggestion 1 week, 2 days ago

Libxml2: double-free/uaf in libxml2 python bindings

A flaw was found in libxml2 with Python bindings enabled. A remote attacker could exploit this vulnerability by providing a specially crafted XML document containing a Document Type Definition (DTD) with enumerated attribute values. This triggers a double-free error in the SAX attributeDecl callback handler, where a string is freed twice. This flaw can lead to a denial of service (DoS) due to a reproducible crash in Python applications using the libxml2 SAX bindings.

References

https://access.redhat.com/security/cve/CVE-2026-74860 vdb-entryx_refsource_REDHAT
RHBZ#2529697 issue-trackingx_refsource_REDHAT

Affected products

podman

libxml2

swift-lang

openshift/ose-rhel-coreos-8

openshift/ose-rhel-coreos-9

container-tools:rhel8/podman

Matching in nixpkgs

pkgs.podman

Program for managing pods, containers and container images

nixos-unstable 5.8.4
- nixpkgs-unstable 5.8.4
- nixos-unstable-small 5.8.6
nixos-26.05 5.8.2
- nixos-26.05-small 5.8.6
- nixpkgs-26.05-darwin 5.8.2

pkgs.libxml2

XML parsing library for C

nixos-unstable 2.15.3
- nixpkgs-unstable 2.15.3
- nixos-unstable-small 2.15.3
nixos-26.05 2.15.3
- nixos-26.05-small 2.15.3
- nixpkgs-26.05-darwin 2.15.3

pkgs.libxml2_13

XML parsing library for C

nixos-unstable 2.13.9
- nixpkgs-unstable 2.13.9
- nixos-unstable-small 2.13.9
nixos-26.05 2.13.9
- nixos-26.05-small 2.13.9
- nixpkgs-26.05-darwin 2.13.9

pkgs.podman-tui

Podman Terminal UI

nixos-unstable 1.11.2
- nixpkgs-unstable 1.11.3
- nixos-unstable-small 1.11.3
nixos-26.05 1.11.1
- nixos-26.05-small 1.11.1
- nixpkgs-26.05-darwin 1.11.1

pkgs.podman-bootc

Streamlining podman+bootc interactions

nixos-unstable 0.1.2
- nixpkgs-unstable 0.1.2
- nixos-unstable-small 0.1.2
nixos-26.05 0.1.2
- nixos-26.05-small 0.1.2
- nixpkgs-26.05-darwin 0.1.2

pkgs.libxml2Python

None

nixos-unstable 2.15.3
- nixpkgs-unstable 2.15.3
- nixos-unstable-small 2.15.3
nixos-26.05 2.15.3
- nixos-26.05-small 2.15.3
- nixpkgs-26.05-darwin 2.15.3

pkgs.cockpit-podman

Cockpit UI for podman containers

nixos-unstable 128
- nixpkgs-unstable 128
- nixos-unstable-small 129
nixos-26.05 125
- nixos-26.05-small 125
- nixpkgs-26.05-darwin 125

pkgs.podman-compose

Implementation of docker-compose with podman backend

nixos-unstable 1.6.0
- nixpkgs-unstable 1.6.0
- nixos-unstable-small 1.6.0
nixos-26.05 1.5.0
- nixos-26.05-small 1.5.0
- nixpkgs-26.05-darwin 1.5.0

pkgs.podman-desktop

Graphical tool for developing on containers and Kubernetes

nixos-unstable 1.27.2
- nixpkgs-unstable 1.27.2
- nixos-unstable-small 1.29.1
nixos-26.05 1.26.2
- nixos-26.05-small 1.28.2
- nixpkgs-26.05-darwin 1.26.2

pkgs.nomad-driver-podman

Podman task driver for Nomad

nixos-unstable 0.6.4
- nixpkgs-unstable 0.6.4
- nixos-unstable-small 0.6.5
nixos-26.05 0.6.4
- nixos-26.05-small 0.6.4
- nixpkgs-26.05-darwin 0.6.4

pkgs.sbclPackages.cl-libxml2

None

nixos-unstable 20130615-git
- nixpkgs-unstable 20130615-git
- nixos-unstable-small 20130615-git
nixos-26.05 20130615-git
- nixos-26.05-small 20130615-git
- nixpkgs-26.05-darwin 20130615-git