Nixpkgs security tracker

Login with GitHub

Details of issue NIXPKGS-2026-0943

NIXPKGS-2026-0943
published 2 months, 3 weeks ago
Permalink CVE-2026-35092
7.5 HIGH
  • CVSS version (CVSS): 3.1
  • Attack Vector (AV): Network (N)
  • Attack Complexity (AC): Low (L)
  • Privileges Required (PR): None (N)
  • User Interaction (UI): None (N)
  • Scope (S): Unchanged (U)
  • Confidentiality (C): None (N)
  • Integrity (I): None (N)
  • Availability (A): High (H)
  • Modified Attack Vector (MAV): Network (N)
  • Modified Attack Complexity (MAC): Low (L)
  • 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): High (H)
updated 2 months, 3 weeks ago by @LeSuisse Activity log
  • Created suggestion 2 months, 3 weeks ago
  • @LeSuisse ignored package corosync-qdevice 2 months, 3 weeks ago
  • @LeSuisse accepted 2 months, 3 weeks ago
  • @LeSuisse published on GitHub 2 months, 3 weeks ago
Corosync: corosync: denial of service via integer overflow in join message validation

A flaw was found in Corosync. An integer overflow vulnerability in Corosync's join message sanity validation allows a remote, unauthenticated attacker to send crafted User Datagram Protocol (UDP) packets. This can cause the service to crash, leading to a denial of service. This vulnerability specifically affects Corosync deployments configured to use totemudp/totemudpu mode.

Affected products

rhcos
corosync

Matching in nixpkgs

pkgs.corosync

Group Communication System with features for implementing high availability within applications

Ignored packages (1)

Package maintainers

No upstream fix (2026-04-02)

RH tracking issue: https://bugzilla.redhat.com/show_bug.cgi?id=2453169