Auth bypass in Openclaw
CVE-2026-28485
OpenClaw versions 2026.1.5 prior to 2026.2.12 fail to enforce mandatory authentication on the /agent/act browser-control HTTP route, allowing unauthorized local callers to invoke privileged operations. Remote attackers on the local network or local processes can execute arbitrary browser-context actions and access sensitive in-session data by sending requests to unauthenticated endpoints.
Vulnerability class: Broken Authentication
EPSS: 0.002 (9.7th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 8.4 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
Affected products
- Openclaw — versions 2026.1.5
Weakness classification (CWE)
References
- disclosure@vulncheck.com (vendor-advisory, Vendor Advisory)
- disclosure@vulncheck.com (Patch, patch)
- disclosure@vulncheck.com (Third Party Advisory, third-party-advisory)
Frequently asked questions
- What is CVE-2026-28485?
- CVE-2026-28485 is a high-severity vulnerability in Openclaw, classified under Missing Authentication for Critical Function. CVSS score: 8.4/10. Published 2026-03-05.
- How severe is CVE-2026-28485?
- High severity. CVSS v3 base score is 8.4 out of 10.