| Component | OpenClaw |
| Severity | critical (CVSS 9.4) |
| CVSS vector | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:L |
| Published (NVD) | 2026-03-05 |
| Last modified | 2026-06-17 |
| Affected versions | openclaw < 2026.2.2 |
| Fixed in | 2026.2.2 |
| Weakness | CWE-303 |
| CISA KEV | not listed |
NVD 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.
What to do
- Upgrade OpenClaw to
2026.2.2or later. - Do not expose the component's API or UI to the internet without authentication in front of it.
Sources
- NVD: CVE-2026-28446
- https://github.com/openclaw/openclaw/security/advisories/GHSA-4rj2-gpmh-qq5x
- https://github.com/openclaw/openclaw/commit/f8dfd034f5d9235c5485f492a9e4ccc114e97fdb
- https://www.vulncheck.com/advisories/openclaw-inbound-allowlist-policy-bypass-in-voice-call-extension-via-empty-caller-id
Read more
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