What is CVE-2026-85622?

CVE-2026-85622 is a medium-severity vulnerability, classified under Incorrect Authorization. CVSS score: 5.3/10. Published 2026-09-04.

How severe is CVE-2026-85622?

Medium severity. CVSS v3 base score is 5.3 out of 10.

CVE-2026-85622

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.

Vulnerability class: Broken Access Control

CVSS v3 metric

CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N.

Weakness classification (CWE)

CWE-863 — Incorrect Authorization

References

disclosure@vulncheck.com
disclosure@vulncheck.com
disclosure@vulncheck.com
disclosure@vulncheck.com

Frequently asked questions

What is CVE-2026-85622?: CVE-2026-85622 is a medium-severity vulnerability, classified under Incorrect Authorization. CVSS score: 5.3/10. Published 2026-09-04.
How severe is CVE-2026-85622?: Medium severity. CVSS v3 base score is 5.3 out of 10.