CyberRota Analysis
AI-GeneratedThe vulnerability affects Traefik's Kubernetes Gateway API provider, specifically in versions 3.7.0 to 3.7.5, where it improperly resolves multiple HTTPRoutes targeting the same backend Service:port with different backendRef filters. This misconfiguration can lead to security-sensitive headers being incorrectly applied, allowing an attacker to manipulate requests and potentially cross namespace boundaries if a ReferenceGrant allows it. Organizations using affected versions of Traefik in their Kubernetes environments should prioritize upgrading to version 3.7.6 to mitigate this high-severity risk.
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 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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