Juju: In-Memory Token Store for Discharge Tokens Lacks Concurrency Safety and Persistence

Summary The localLoginHandlers struct in the Juju API server maintains an in-memory map to store discharge tokens following successful local authentication. This map is accessed concurrently from multiple HTTP handler goroutines without any synchronization primitive protecting it. The absence of ...

CVE-2026-5774 Juju API Server Denial of Service and Authentication Replay via Unsynchronized Token Map

Improper synchronization of the userTokens map in the API server in Canonical Juju 4.0.5, 3.6.20, and 2.9.56 may allow an authenticated user to possibly cause a denial of service on the server or possibly reuse a single-use discharge token...

CVE-2026-5774 Juju API Server Denial of Service and Authentication Replay via Unsynchronized Token Map

Improper synchronization of the userTokens map in the API server in Canonical Juju 4.0.5, 3.6.20, and 2.9.56 may allow an authenticated user to possibly cause a denial of service on the server or possibly reuse a single-use discharge token...

CVE-2026-5774 Juju API Server Denial of Service and Authentication Replay via Unsynchronized Token Map

Improper synchronization of the userTokens map in the API server in Canonical Juju 4.0.5, 3.6.20, and 2.9.56 may allow an authenticated user to possibly cause a denial of service on the server or possibly reuse a single-use discharge token...