CVE-2026-85622 AppFlowy-Cloud through 0.9.64 Cross-Workspace Collab Read via WebSocket
Authenticated attackers can read data from other workspaces by bypassing membership checks in WebSocket connections.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-85622?
CVE-2026-85622 is a medium-severity missing authorization vulnerability in AppFlowy-IO AppFlowy-Cloud, published on 4 Sep 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
AppFlowy-Cloud through 0.9.64 fails to validate workspace membership when establishing WebSocket connections in the establish_ws_connection_v2 handler, allowing authenticated users to bind sessions to workspaces they do not belong to. Attackers can send sync Manifest messages with victim object identifiers to read full document or database state from collaborations in other workspaces without victim involvement.
Weakness: CWE-863
Which versions are affected by CVE-2026-85622?
How do I fix CVE-2026-85622?
No fix has been published for CVE-2026-85622 yet. Limit exposure of the affected software until one is available.
Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.
Is CVE-2026-85622 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-85622 exists.
Sources
Also known as GHSA-gjxj-rv8r-wcp5.