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Details of issue NIXPKGS-2026-0254

NIXPKGS-2026-0254
published 3 months, 4 weeks ago
Permalink CVE-2026-25949
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 3 months, 4 weeks ago by @LeSuisse Activity log
  • Created suggestion
  • @LeSuisse ignored package traefik-certs-dumper
  • @LeSuisse accepted
  • @LeSuisse published on GitHub
Traefik: TCP readTimeout bypass via STARTTLS on Postgres

Traefik is an HTTP reverse proxy and load balancer. Prior to 3.6.8, there is a potential vulnerability in Traefik managing STARTTLS requests. An unauthenticated client can bypass Traefik entrypoint respondingTimeouts.readTimeout by sending the 8-byte Postgres SSLRequest (STARTTLS) prelude and then stalling, causing connections to remain open indefinitely, leading to a denial of service. This vulnerability is fixed in 3.6.8.

Affected products

traefik
  • ==< 3.6.8

Matching in nixpkgs

Ignored packages (1)

Package maintainers

Upstream advisory: https://github.com/traefik/traefik/security/advisories/GHSA-89p3-4642-cr2w
Upstream patch: https://github.com/traefik/traefik/commit/31e566e9f1d7888ccb6fbc18bfed427203c35678