Multiple vulnerabilities in Traefik (July 2, 2026)

unknownCVE-2026-54763 CVE-2026-54764 CVE-2026-54765

Multiple vulnerabilities have been discovered in Traefik. They allow an attacker to cause security policy bypass.

CSIRTS triage

vendor: Traefik product: Traefik Authentication bypass

What: Multiple vulnerabilities allow for security policy bypass.
Who is affected: Users of Traefik are affected.
Urgency: Remediation is urgent due to the potential for exploitation.
Action: Apply patches or mitigations as provided by Traefik.

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

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Details

Source: CERT-FR Avis de sécurité (FR · national-cert · site)
Severity: unknown
Published: 2026-07-02
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-0823/

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-2026-547630.26% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 17% of all scored CVEs.
Low exploitation riskCVE-2026-547640.29% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 21% of all scored CVEs.
Low exploitation riskCVE-2026-547650.35% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 27% of all scored CVEs.

Referenced CVEs

CVE	CSIRTS overview	External
CVE-2026-54763	coverage & exploitation status	NVD · CVE.org
CVE-2026-54764	coverage & exploitation status	NVD · CVE.org
CVE-2026-54765	coverage & exploitation status	NVD · CVE.org

Same CVEs, other sources

How other CERTs, PSIRTs and databases cover the vulnerabilities in this advisory.

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.

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highCVE-2026-54765: Traefik is an open source HTTP reverse proxy and load balancer. From v3.7.0 prior to v3.7.6, T…nvd · 2026-07-06
mediumCVE-2026-54764: Traefik is an HTTP reverse proxy and load balancer. Prior to v2.11.51, v3.6.22, and v3.7.6, Tr…nvd · 2026-07-06
criticalCVE-2026-54763: Traefik is an HTTP reverse proxy and load balancer. Prior to v2.11.51, v3.6.22, and v3.7.6, Tr…nvd · 2026-07-06
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