Vulnerability in Traefik (June 11, 2026)

unknownCVE-2026-54761

A vulnerability has been discovered in Traefik. It allows an attacker to bypass the security policy.

CSIRTS triage

vendor: Traefik product: Traefik Authentication bypass

What: A vulnerability in Traefik allows an attacker to bypass security policies.
Who is affected: Users of Traefik are affected by this vulnerability.
Urgency: Remediation is necessary as this could lead to unauthorized access to resources.
Action: Users should apply patches or updates to Traefik to secure against this vulnerability.

AI-assisted analysis generated from the source advisory — verify against the original.

⚡ Watch Traefik

Get an email when a new Traefik advisory drops — max one per day, one-click unsubscribe.

Details

Source: CERT-FR Avis de sécurité (FR · national-cert · site)
Severity: unknown
Published: 2026-06-11
Exploitation: Not in CISA KEV at last sync
Language: Machine-translated to English — verify against the original

Original advisory: https://www.cert.ssi.gouv.fr/avis/CERTFR-2026-AVI-0738/

Exploitation outlook

EPSS (FIRST.org) estimates each CVE’s probability of exploitation in the next 30 days — here is the CSIRTS.com read on those numbers.

Low exploitation riskCVE-2026-547610.32% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 24% of all scored CVEs.

Referenced CVEs

CVE	CSIRTS overview	External
CVE-2026-54761	coverage & exploitation status	NVD · CVE.org

Recent advisories for Traefik

A cluster of recent advisories against the same product widens the attack surface — attackers routinely chain freshly published CVEs on one product, so review these together.

unknownMultiples vulnérabilités dans Traefik (04 août 2026)cert-fr-avis · 2026-08-04
unknownCVE-2026-67309: Traefik versions >= v3.7.0 and <= v3.7.7 contain a path traversal vulnerability in the Kuberne…nvd · 2026-08-01
unknownVulnerability in Traefik (July 27, 2026)cert-fr-avis · 2026-07-27
unknownCVE-2026-65602: Traefik 3.6.0 through 3.6.22 and 3.7.0 through 3.7.6 fail to enforce the crossProviderNamespac…nvd · 2026-07-22
unknownCVE-2026-65601: Traefik versions 3.7.0 through 3.7.6 contain a namespace confusion vulnerability in the Kubern…nvd · 2026-07-22
unknownCVE-2026-65600: Traefik versions = v3.6.0 = v3.7.0 <= v3.7.6 contain an authentication bypass via path travers…nvd · 2026-07-22