Multiple vulnerabilities in Traefik (July 09, 2026)
Multiple vulnerabilities have been discovered in Traefik. They allow an attacker to cause a security policy bypass.
CSIRTS triage
- What
- Multiple vulnerabilities allow an attacker to cause a security policy bypass.
- Who is affected
- Deployments of Traefik are affected.
- Urgency
- Remediation urgency is unknown due to unspecified severity.
- Action
- Monitor for updates and apply patches as they become available.
AI-assisted analysis generated from the source advisory — verify against the original.
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Details
Original advisory: https://www.cert.ssi.gouv.fr/avis/CERTFR-2026-AVI-0851/
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.
- 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
- unknownMultiple vulnerabilities in Traefik (July 2, 2026)cert-fr-avis · 2026-07-02
- highGHSA-89p3-4642-cr2w: Traefik: TCP readTimeout bypass via STARTTLS on Postgresghsa · 2026-02-12
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