AI agent vulnerability · OpenClaw

CVE-2026-35652: OpenClaw: Mattermost callback dispatch allowed non-allowlisted sender actions

mediumCVSS 4.0 6.9 · 3.1 6.5GHSA-8883-9w57-vwv6

Summary Mattermost interactive callback dispatch could run action handlers before normal sender authorization checks completed. Affected Packages / Versions - Package: openclaw (npm) - Affected: = 2026.3.22 - Latest released tag checked: v2026.3.23-2 (630f1479c44f78484dfa21bb407cbe6f171dac87) - Latest published npm version checked: 2026.3.23-2 Fix Commit(s) - a47722de7e3c9cbda8d5512747ca7e3bb8f6ee66 Release Status…

Published Mar 26, 2026 · Updated Apr 10, 2026

Affected packages

openclaw

Ecosystem: npm
Affected: < 2026.3.22
Fixed in: 2026.3.22
Check: npm ls openclaw

Advisory details

From the GitHub Advisory Database (CC BY 4.0).

Summary

Mattermost interactive callback dispatch could run action handlers before normal sender authorization checks completed.

Affected Packages / Versions

Package: openclaw (npm)
Affected: < 2026.3.22
Fixed: >= 2026.3.22
Latest released tag checked: v2026.3.23-2 (630f1479c44f78484dfa21bb407cbe6f171dac87)
Latest published npm version checked: 2026.3.23-2

Fix Commit(s)

a47722de7e3c9cbda8d5512747ca7e3bb8f6ee66

Release Status

The fix shipped in v2026.3.22 and remains present in v2026.3.23 and v2026.3.23-2.

Code-Level Confirmation

extensions/mattermost/src/mattermost/interactions.ts now requires callback authorization before dispatching actions.
extensions/mattermost/src/mattermost/monitor.ts routes callback authorization through the same sender and allowlist policy used for normal ingress.

OpenClaw thanks @zpbrent for reporting.

Credited to zpbrent.

References

How this page is made: the data panel comes from the GitHub Advisory Database, CISA’s KEV catalog, the NVD and FIRST EPSS, and updates twice a day. No analysis has been written for this entry yet. Methodology

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