CVE-2026-74877

opensslencrypt versions before 1.4.0 contain a missing ownership verification vulnerability in the revokekey method that allows authenticated clients to revoke any other client's key. Attackers can revoke arbitrary keys by providing a valid ML-DSA signature, bypassing the intended ownership...

CVE-2026-74877 openssl_encrypt before 1.4.0 Missing Ownership Verification via revoke_key

opensslencrypt versions before 1.4.0 contain a missing ownership verification vulnerability in the revokekey method that allows authenticated clients to revoke any other client's key. Attackers can revoke arbitrary keys by providing a valid ML-DSA signature, bypassing the intended ownership...

CVE-2026-74877

openssl_encrypt versions before 1.4.0 contain a missing ownership verification flaw in the revoke_key method (keyserver/service.py, lines 195–270). The method accepts a client_id parameter but never verifies it matches key.owner_client_id, allowing any authenticated client to revoke another clien...