GHSA-2RX5-2G7J-2659 Cosmos-Server has an authentication bypass via forward-auth header smuggling on Constellation tunnel

Summary The Constellation-tunnel bypass branch in tokenMiddleware at src/proxy/routerGen.go:53-66 returns to the upstream handler before the request's x-cosmos-user, x-cosmos-role, x-cosmos-user-role, and x-cosmos-mfa headers are stripped at lines 68-72, and before the AdminOnlyWithRedirect gate ...

PT-2026-65683

Name of the Vulnerable Software and Affected Versions Cosmos-Server affected versions not specified Description An authentication bypass exists in the tokenMiddleware function within src/proxy/routerGen.go. The issue occurs when the Constellation-tunnel bypass branch is triggered, causing the...