CVE-2026-46386 OpenProject: Pre-authentication RCE in openproject/openproject Docker image via default `SECRET_KEY_BASE=OVERWRITE_ME` and `cookies_serializer = :marshal`

OpenProject is open-source, web-based project management software. Prior to , the official openproject/openproject Docker image ships ENV SECRETKEYBASE=OVERWRITEME as the default Rails master key. Combined with cookiesserializer = :marshal, this gives any logged-in user a deterministic...

CVE-2026-46386

OpenProject’s official docker image ships SECRET_KEY_BASE=OVERWRITE_ME and cookies_serializer = :marshal, creating a deterministic Marshal-deserialization path reachable via the /my/two_factor_devices cookie reader. This enables potential pre-authentication remote code execution, as noted in the ...

Unsafe objects can be loaded from Redis

Redis-store =v1.3.0 allows unsafe objects to be loaded from Redis via the use of the Marshal serializer...