CVE-2025-71426 Contrast before 1.4.1 Coordinator Impersonation via Unauthenticated Recovery

Contrast is a confidential-computing runtime for Kubernetes. In versions before 1.4.1, a recovering Coordinator does not verify the seed supplied by the recovering party. An attacker can therefore stand up a rogue Coordinator whose manifest passes validation but whose secret seed is...

CVE-2025-71426

In Contrast (a confidential-computing runtime for Kubernetes) versions before 1.4.1 , a flaw in the Coordinator recovery process allows for impersonation via an unauthenticated recovery. Because a recovering Coordinator fails to verify the seed supplied by the recovering party, an attacker can de...

CVE-2025-71426 Contrast before 1.4.1 Coordinator Impersonation via Unauthenticated Recovery

Contrast is a confidential-computing runtime for Kubernetes. In versions before 1.4.1, a recovering Coordinator does not verify the seed supplied by the recovering party. An attacker can therefore stand up a rogue Coordinator whose manifest passes validation but whose secret seed is...

GO-2025-3455 Contrast's unauthenticated recovery allows Coordinator impersonation in github.com/edgelesssys/contrast

Contrast's unauthenticated recovery allows Coordinator impersonation in github.com/edgelesssys/contrast...

GO-2025-3450 MarbleRun unauthenticated recovery allows Coordinator impersonation in github.com/edgelesssys/marblerun

MarbleRun unauthenticated recovery allows Coordinator impersonation in github.com/edgelesssys/marblerun...

Contrast's unauthenticated recovery allows Coordinator impersonation

Impact Recovering coordinators do not verify the seed provided by the recovering party. This allows an attacker to set up a coordinator with a manifest that passes validation, but with a secret seed controlled by the attacker. If network traffic is redirected from the legitimate coordinator to th...

MarbleRun unauthenticated recovery allows Coordinator impersonation

Impact During recovery, a Coordinator only verifies that a given recovery key decrypts the sealed state, not if this key was provided by a party with access to one of the recovery keys defined in the manifest. This allows an attacker to manually craft a sealed state using their own recovery keys,...