OpenClaw: Mattermost callback dispatch allowed non-allowlisted sender actions
## 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.
describes (1)
Related CVEs.
| ID | severity | exploitable | ||
|---|---|---|---|---|
| CVE-2026-35652US | critical9.1OT elevated | — | ||
OpenClaw before 2026.3.22 contains an authorization bypass vulnerability in interactive callback dispatch that allows non-allowlisted senders to execute action handlers. Attackers… | ||||
references
External citations — patches, advisories, analysis.
- https://github.com/openclaw/openclawPACKAGE
- https://github.com/openclaw/openclaw/commit/630f1479c44f78484dfa21bb407cbe6f171dac87WEB
- https://github.com/openclaw/openclaw/commit/a47722de7e3c9cbda8d5512747ca7e3bb8f6ee66WEB
- https://github.com/openclaw/openclaw/security/advisories/GHSA-8883-9w57-vwv6WEB
- https://nvd.nist.gov/vuln/detail/CVE-2026-35652ADVISORY
- https://www.vulncheck.com/advisories/openclaw-unauthorized-action-execution-via-callback-dispatchWEB
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