Nixpkgs security tracker

Login with GitHub

Details of issue NIXPKGS-2026-1236

NIXPKGS-2026-1236
published on
Permalink CVE-2026-33594
5.3 MEDIUM
  • CVSS version: 3.1
  • Attack vector (AV): NETWORK
  • Attack complexity (AC): LOW
  • Privileges required (PR): NONE
  • User interaction (UI): NONE
  • Scope (S): UNCHANGED
  • Confidentiality impact (C): NONE
  • Integrity impact (I): NONE
  • Availability impact (A): LOW
updated 6 days, 11 hours ago by @LeSuisse Activity log
  • Created suggestion 6 days, 17 hours ago
  • @LeSuisse accepted 6 days, 11 hours ago
  • @LeSuisse published on GitHub 6 days, 11 hours ago
Outgoing DoH excessive memory allocation

A client can trigger excessive memory allocation by generating a lot of queries that are routed to an overloaded DoH backend, causing queries to accumulate into a buffer that will not be released until the end of the connection.

Affected products

dnsdist
  • <1.9.13
  • <2.0.4

Matching in nixpkgs

Package maintainers