Vulnerability details
CVE-2026-28446
OpenClaw OpenClaw
OpenClaw < 2026.2.1 - Inbound Allowlist Policy Bypass in voice-call Extension via Empty Caller ID and Suffix Matching
CVSS 4.0
9.2Critical
Official 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 scores
| Score | Version | Source | Vector |
|---|---|---|---|
| 9.2Critical | 4.0 | CVEProject cvelistV5 (CNA) (VulnCheck) | CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:L/SC:N/SI:N/SA:N |
| 9.4Critical | 3.1 | CVEProject cvelistV5 (CNA) (VulnCheck) | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:L |
Affected products
| Vendor | Product | Versions | Source |
|---|---|---|---|
| OpenClaw | OpenClaw | v < 2026.2.1 | CVEProject cvelistV5 (CNA) |
References and advisories
3- https://github.com/openclaw/openclaw/security/advisories/GHSA-4rj2-gpmh-qq5x vendor-advisory
- https://github.com/openclaw/openclaw/commit/f8dfd034f5d9235c5485f492a9e4ccc114e97fdb patch
- https://www.vulncheck.com/advisories/openclaw-inbound-allowlist-policy-bypass-in-voice-call-extension-via-empty-caller-id third-party-advisory
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Details
- Published
- 2026-03-06
- Last updated
- 2026-03-11
- State
- Published
- Assigner (CNA)
- VulnCheck
Exploit prediction (EPSS)
0.74%
Probability of exploitation in 30 days
55.1%
Percentile (among all CVEs)
SSVC assessment (CISA)
- Automatable
- Yes
- Exploitation
- None
- Technical impact
- Total
Weaknesses (CWE)
- CWE-303Incorrect Implementation of Authentication Algorithm