Traefik is an open source HTTP reverse proxy and load balancer. From 3.0.0 until 3.6.25 and 3.7.10, Traefik's Kubernetes Gateway API provider in pkg/provider/kubernetes/gateway/httproute.go, grpcroute.go, tcproute.go, and tlsroute.go builds HTTPRoute, GRPCRoute, TCPRoute, and TLSRoute router and service identities by hyphen-concatenating namespace, route name, Gateway identity, entry point, and rule index, allowing colliding Routes to overwrite another namespace's backend. This issue is fixed in 3.6.25 and 3.7.10.
Attack Parameters
Attack Vector
Network
Can be exploited remotely
Attack Complexity
Low
Easy to exploit
Attack Requirements
Present
Additional conditions required
Privileges Required
Low
Basic privileges needed
User Interaction
None
No user interaction needed
Impact Assessment
Confidentiality
High
Complete data leak
Integrity
High
Complete data modification
Availability
None
No disruption
CVSS Vector v4.0
Weakness Type (CWE)
Vulnerable Products
traefik:traefik
References 5
https://github.com/traefik/traefik/commit/a764166656f0cd337f917ac76315c381cca84…
security-advisories@github.com
https://github.com/traefik/traefik/pull/13580
security-advisories@github.com
https://github.com/traefik/traefik/releases/tag/v3.6.25
security-advisories@github.com
https://github.com/traefik/traefik/releases/tag/v3.7.10
security-advisories@github.com
https://github.com/traefik/traefik/security/advisories/GHSA-fgjj-px3w-67xx
security-advisories@github.com