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cozystack/hack
Aleksei Sviridkin 70a675fd6b feat(cozystack-basics): gate GRPCRoute hostnames in tenant namespaces
The route hostname policy covered HTTPRoute and TLSRoute. GRPCRoute
carries spec.hostnames too, and it can reach a tenant Gateway: the
port-443 listeners pin allowedRoutes.kinds to HTTPRoute and TLSRoute,
but the port-80 listener leaves kinds unset, and an unset list resolves
to the kinds the listener protocol supports, which for HTTP includes
GRPCRoute. A GRPCRoute in a tenant namespace could therefore claim any
hostname on the plaintext listener with nothing checking it.

Tenants hold no gateway.networking.k8s.io RBAC, so this is the same
defence-in-depth against a chart bug that the other two rules are, not a
tenant-user control. The new rule is the HTTPRoute rule with grpcroutes
in place of httproutes and the single served version the bundle
provides; the coverage guard pins that list to the bundle like the
others.

Assisted-by: LLM
Signed-off-by: Aleksei Sviridkin <f@lex.la>
2026-09-03 22:17:28 +03:00
..
2026-02-17 22:54:12 +01:00