CVE-2026-65602: traefik from 3.6.0 (inclusive), before 3.6.23 (exclusive), from 3.7.0 (inclusive), before 3.7.7 (exclusive), 3.6.0 to…

Affected technology

traefik · from 3.6.0 (inclusive), before 3.6.23 (exclusive)
traefik

traefik · from 3.7.0 (inclusive), before 3.7.7 (exclusive)
traefik

traefik · 3.6.0 to before 3.6.23
traefik

traefik · 3.7.0 to before 3.7.7
traefik

Description’s affected range: through 3.6.22 and 3.7.0 through 3.7.6 fail to enforce the crossProviderNamespaces allowlist for IngressRouteTCP service serversTransport references (the allowlist was only enforced for HTTP serversTransport references)

Component: Not specified by the source

Attack conditions (Vendor/CNA, CVSS 4.0): Network (remote) · Low privileges required · No user interaction required

What an attacker can do

Vendor/CNA’s CVSS 4.0 assessment (base score 5.3/10) rates confidentiality, integrity and availability impact as none. The description does not specify what an attacker can achieve beyond these rated impacts.