CVE-2026-28446: Openclaw

Critical severity, CVSS 9.8. EPSS: 1% chance of exploitation in the next 30 days.

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.

Affected products

• Openclaw Openclaw: before 2026.2.2 (fixed in 2026.2.2)

Published 2026-03-05. Last modified 2026-06-17.