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Description

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.

PUBLISHED Reserved 2026-02-27 | Published 2026-03-05 | Updated 2026-03-05 | Assigner VulnCheck




HIGH: 7.5CVSS:4.0/AV:L/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:L/SC:N/SI:N/SA:N
HIGH: 8.4CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Problem types

Missing Authentication for Critical Function

Product status

Default status
unaffected

2026.1.5 (custom) before 2026.2.12
affected

Credits

Troy Cusolle (@tcusolle) reporter

References

github.com/...enclaw/security/advisories/GHSA-qpjj-47vm-64pj (GitHub Security Advisory (GHSA-qpjj-47vm-64pj)) vendor-advisory

github.com/...ommit/9230a2ae14307740a13ada7afd6dcfab34e0287f (Patch Commit) patch

www.vulncheck.com/...ation-in-browser-control-http-endpoints (VulnCheck Advisory: OpenClaw 2026.1.5 < 2026.2.12 - Missing Authentication in Browser Control HTTP Endpoints) third-party-advisory

cve.org (CVE-2026-28485)

nvd.nist.gov (CVE-2026-28485)

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