CVE-2026-55881 OpenReplay: Cross-tenant session replay disclosure via missing session ownership check in first-mob endpoint

OpenReplay is a self-hosted session replay suite. From 1.22.0 before 1.27.0, getFirstMob returned 15-second presigned S3 download URLs for a session's DOM-replay recording based solely on the session path parameter, while validateProjectAccess checked only that the project belonged to the...

CVE-2026-55881

OpenReplay (self-hosted session replay) versions affected: 1.22.0 – 1.27.0. The vulnerability arises in getFirstMob where 15-second presigned S3 download URLs for a session’s DOM-replay recording were generated based only on the session path, while validateProjectAccess only checked tenant owners...