CyberRota Analysis
AI-GeneratedTraefik versions 3.6.0 to 3.6.22 and 3.7.0 to 3.7.6 are vulnerable due to improper enforcement of the crossProviderNamespaces allowlist for IngressRouteTCP service serversTransport references, allowing low-privileged Kubernetes users to exploit this weakness. This could lead to unauthorized access to sensitive backend configurations, including mTLS client certificates and SPIFFE identities. Kubernetes administrators using affected Traefik versions should prioritize updating to versions 3.6.23 or 3.7.7 to mitigate potential security risks.
Public Exploit Signal
A public exploit, PoC, GitHub repository or Metasploit reference was detected for this CVE.
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Original NVD Description
Traefik 3.6.0 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). A low-privileged Kubernetes user in a namespace not listed in crossProviderNamespaces can set serversTransport: foo@file on an IngressRouteTCP service, causing Traefik to accept the forbidden cross-provider reference and use a file-provider TCPServersTransport — including privileged backend mTLS client certificates, SPIFFE identity, or PROXY-protocol settings. This is fixed in 3.6.23 and 3.7.7.
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