onyx

onyx --cves cve-2026-85597

CVE-2026-85597

CRITPOCTraefik
score
8.6
cvss
9.1
epss
0.4%
published
2026-09-04
kev added
—
first seen

Traefik < 2.11.55 contains a broken authentication caused by TLS option conflict resolution in multi-host routers, letting unauthenticated attackers bypass client-certificate authentication, exploit requires multi-host router configuration.

Timeline

How this CVE moved toward exploitation. Chart: last 30 days — trend score, EPSS, community mentions per day; hover the event lane.

events2026-09-04 — PublishedP2026-10-21 — Tracked by OnyxT2026-10-21 — Public PoCXscore2026-10-21: score 8.68.6epss2026-09-22: epss 0.2%2026-09-23: epss 0.2%2026-09-24: epss 0.4%2026-09-25: epss 0.4%2026-09-26: epss 0.4%2026-09-27: epss 0.4%2026-09-29: epss 0.4%2026-09-30: epss 0.4%2026-10-01: epss 0.4%2026-10-02: epss 0.4%2026-10-03: epss 0.4%2026-10-04: epss 0.4%2026-10-05: epss 0.4%2026-10-06: epss 0.4%2026-10-07: epss 0.4%2026-10-08: epss 0.4%2026-10-09: epss 0.4%2026-10-10: epss 0.4%2026-10-11: epss 0.4%2026-10-12: epss 0.4%2026-10-13: epss 0.4%2026-10-14: epss 0.4%2026-10-15: epss 0.4%2026-10-16: epss 0.4%2026-10-18: epss 0.4%2026-10-19: epss 0.4%2026-10-20: epss 0.4%2026-10-21: epss 0.4%0.4%mentions/day0no mentions in 30 days2026-09-22today
  1. Published
  2. Tracked by Onyx
  3. Public PoC

Exploit availability

Public PoC flagged by vulnx; no direct exploit link among the citations.

Weaknesses

CWE-863

References 2