What is CVE-2026-28446?

CVE-2026-28446 is a critical-severity vulnerability in Openclaw, classified under Incorrect Implementation of Authentication Algorithm. CVSS score: 9.4/10. Published 2026-03-05.

How severe is CVE-2026-28446?

Critical severity. CVSS v3 base score is 9.4 out of 10.

Vulnerability in Openclaw

CVE-2026-28446

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 inst…

EPSS: 0.007 (46.6th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 9.4 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:L.

Affected products

Openclaw — versions 0

Weakness classification (CWE)

CWE-303 — Incorrect Implementation of Authentication Algorithm

References

disclosure@vulncheck.com (Exploit, vendor-advisory, Vendor Advisory)
disclosure@vulncheck.com (Patch, patch)
disclosure@vulncheck.com (Third Party Advisory, third-party-advisory)

Frequently asked questions

What is CVE-2026-28446?: CVE-2026-28446 is a critical-severity vulnerability in Openclaw, classified under Incorrect Implementation of Authentication Algorithm. CVSS score: 9.4/10. Published 2026-03-05.
How severe is CVE-2026-28446?: Critical severity. CVSS v3 base score is 9.4 out of 10.