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.
Affected software
Click a technology to see all vulnerabilities affecting it.
| Platform | Package | Vulnerable versions | Fixed in |
|---|---|---|---|
| npm package | openclaw | < 2026.3.22 | 2026.3.22 |
References
- https://github.com/openclaw/openclaw/security/advisories/GHSA-8883-9w57-vwv6
- https://nvd.nist.gov/vuln/detail/CVE-2026-35652
- https://github.com/openclaw/openclaw/commit/630f1479c44f78484dfa21bb407cbe6f171dac87
- https://github.com/openclaw/openclaw/commit/a47722de7e3c9cbda8d5512747ca7e3bb8f6ee66
- https://github.com/openclaw/openclaw
- https://www.vulncheck.com/advisories/openclaw-unauthorized-action-execution-via-callback-dispatch
- CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L- Weakness (CWE)
CWE-285, CWE-696, CWE-863- Platform
- npm
- Package
openclaw- Disclosed
- 26.03.2026
- Updated
- 11.10.2026 10:22
Sources and licenses
OSV / GitHub Advisory Database - GHSA-8883-9w57-vwv6 - CC BY 4.0
Vulnerability history: openclaw
All published vulnerabilities of this package (npm package), newest first. Shows whether this is a one-off slip or a package that needs watching.
- Total entries
- 588
- First → latest
- 02.2026 07.2026
- Without a fix
- 9
- Exploited in attacks
- 0
Severity breakdown
- Critical 20
- High 215
- Medium 299
- Low 54
Disclosures per year
- 2026: 588
-
OpenClaw: Mattermost callback dispatch allowed non-allowlisted sender actions this entry
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