CVE-2026-85619 AppFlowy-Cloud 0.9.64 Cross-Workspace Collab Access via HTTP API

High 7.7 Published Updated

Attackers can bypass workspace authorization checks to read, modify, or delete documents and database rows across different workspaces.

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-2026-85619?

CVE-2026-85619 is a high-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 0.9.64 fails to verify that requested collab objects belong to the workspace in authorization checks, allowing attackers to access documents and database rows across workspaces. Attackers can supply a victim's object ID with their own workspace ID to bypass access controls and read, modify, or delete cross-workspace data.

Weakness: CWE-863

Which versions are affected by CVE-2026-85619?

How do I fix CVE-2026-85619?

No fix has been published for CVE-2026-85619 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-2026-85619 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-85619 exists.

Sources

Also known as GHSA-7jw5-c6mp-q4xf.

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