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Advisory record · GHSA-gv8r-9rw9-9697

Traefik affected by TLS ClientAuth Bypass on HTTP/3

CVSS 10.0 CriticalCritical

Critical, because:

  • CVSS score 10.0: 9.0 or more.

How we decide what’s critical

Published by the GitHub Advisory Database at 20 Feb 2026, 21:14 UTC. agentprime has not analysed this yet, so whether it affects any app is not known.

PackageEcosystemAffectedFixed in
github.com/traefik/traefikGo<=1.7.34No fixed version yet
github.com/traefik/traefik/v2Go<2.11.372.11.37
github.com/traefik/traefik/v3Go<3.6.83.6.8
Identifiers
GHSA-gv8r-9rw9-9697 · GO-2026-4530
Weakness (CWE)
CWE-1395
Tags
Published
20 Feb 2026
Updated
13 Mar 2026

Not analysed yet

We haven’t published our analysis of this Advisory yet. Once a person has reviewed it, this page will say what’s vulnerable, what has to be true for your app to be affected, and how to check.

Severity and exploitation

ScoreRatingCVSSVectorSource
10.0 Critical 3.1 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:N GitHub Advisory Database
  • CISA KEV Not listed.
  • EPSS No score.

Timeline

This record came from the full history of the GitHub Advisory Database, published 20 Feb 2026. New records show when each source confirmed them.

Sources

Facts on this page come from the GitHub Advisory Database (CC-BY 4.0), OSV and the other sources listed, as published. We don’t reproduce full advisory descriptions, which can contain exploit code.