CVE-2026-85622

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.

CVSS v3 5.3 MEDIUM

5.3^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 1.6 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity HIGH

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact NONE

Availability Impact NONE

Scope UNCHANGED

References

Link	Resource
https://github.com/AppFlowy-IO/AppFlowy-Cloud
https://github.com/AppFlowy-IO/AppFlowy-Cloud/blob/0.9.64/src/api/ws.rs
https://github.com/AppFlowy-IO/AppFlowy-Cloud/issues/1629
https://www.vulncheck.com/advisories/appflowy-cloud-through-0.9.64-cross-workspace-collab-read-via-websocket

Configurations

No configuration.

History

No history.

Information

Published : 2026-09-04 15:17

Updated : 2026-09-10 15:53

NVD link : CVE-2026-85622

Mitre link : CVE-2026-85622

CVE.ORG link : CVE-2026-85622

JSON object : View

Products Affected

No product.

CWE

CWE-863

Incorrect Authorization

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