Improper Authentication in OpenClaw - CVE-2026-28446
Published: May 4, 2026
Vulnerability identifier: #VU129487
CSH Severity: High
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:L/SC:N/SI:N/SA:N/E:U/U:Amber
CVE-ID: CVE-2026-28446
CWE-ID: CWE-287
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: OpenClaw
Affected software:
OpenClaw
OpenClaw
Detailed vulnerability description
The vulnerability allows a remote attacker to bypass inbound access controls and reach the voice-call agent.
The vulnerability exists due to improper authentication in the inbound allowlist check in extensions/voice-call/src/manager.ts when handling inbound calls under allowlist or pairing policy. A remote attacker can place a call with an empty caller ID or a caller number whose digits end with an allowlisted number to bypass inbound access controls and reach the voice-call agent.
Only deployments with the optional voice-call extension installed and enabled are vulnerable.
How to mitigate CVE-2026-28446
Install security update from vendor's website.