CVE Watch8 jul 2026

CVE-2026-54765

Traefik is an open source HTTP reverse proxy and load balancer. From v3.7.0 prior to v3.7.6, Traefik's Kubernetes Gateway API provider may r

CVSS

8.5

Alto

EPSS

0.3%

p27

KEV

—

Exploit Today

0-100

Publicado: 6 jul 2026 · Última mod.: 8 jul 2026 · CWE-284 · CWE-863

EPSS · 30d

0.3%EPSS · 30 días0.4%

2026-07-072026-07-21

Descripción técnica

Traefik is an open source HTTP reverse proxy and load balancer. From v3.7.0 prior to v3.7.6, Traefik's Kubernetes Gateway API provider may resolve two accepted HTTPRoutes that target the same backend Service:port but configure different backendRef filters to the same child service and apply only one route's filter set to all requests reaching that backend. In Gateway deployments where backendRef filters set security-sensitive headers, such as tenant identity, authorization context, or values the backend trusts, an attacker who can create an accepted HTTPRoute sharing the same backend Service:port may cause their route's filter context to be applied to another route's requests, potentially crossing namespace boundaries when a ReferenceGrant permits cross-namespace targeting. This issue is fixed in version v3.7.6.

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