Vulnerability Description
OpenClaw versions prior to 2026.2.1 with the voice-call extension installed and enabled contain an authentication bypass vulnerability in inbound allowlist policy validation that accepts empty caller IDs and uses suffix-based matching instead of strict equality. Remote attackers can bypass inbound access controls by placing calls with missing caller IDs or numbers ending with allowlisted digits to reach the voice-call agent and execute tools.
CVSS Score
CRITICAL
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Openclaw | Openclaw | < 2026.2.2 |
Related Weaknesses (CWE)
References
- https://github.com/openclaw/openclaw/commit/f8dfd034f5d9235c5485f492a9e4ccc114e9Patch
- https://github.com/openclaw/openclaw/security/advisories/GHSA-4rj2-gpmh-qq5xExploitVendor Advisory
- https://www.vulncheck.com/advisories/openclaw-inbound-allowlist-policy-bypass-inThird Party Advisory
FAQ
What is CVE-2026-28446?
CVE-2026-28446 is a vulnerability with a CVSS score of 9.4 (CRITICAL). OpenClaw versions prior to 2026.2.1 with the voice-call extension installed and enabled contain an authentication bypass vulnerability in inbound allowlist policy validation that accepts empty caller ...
How severe is CVE-2026-28446?
CVE-2026-28446 has been rated CRITICAL with a CVSS base score of 9.4/10. This is considered a critical vulnerability requiring immediate attention.
Is there a patch for CVE-2026-28446?
Check the references section above for vendor advisories and patch information. Affected products include: Openclaw Openclaw.