CVE-2026-53821 | THREATINT

Description

OpenClaw before 2026.5.18 accepts WebSocket client-declared operator scopes before binding to server-approved pairing or trusted-proxy authorization baseline. Unpaired or restricted trusted-proxy Control UI clients can obtain cached operator.admin authority on live WebSocket connections to execute admin-gated Gateway RPCs.

PUBLISHED Reserved 2026-06-10 | Published 2026-06-12 | Updated 2026-06-15 | Assigner VulnCheck

HIGH: 8.7CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

HIGH: 8.8CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Problem types

Missing Authorization

Product status

Default status

unaffected

Any version before 2026.5.18

affected

2026.5.18 (semver)

unaffected

Credits

Ad Actum (@adactum) tool

Andres Murillo (@handmilkingsoftware) reporter

References

github.com/...enclaw/security/advisories/GHSA-qjpc-qf9m-xwmr (GitHub Security Advisory (GHSA-qjpc-qf9m-xwmr)) vendor-advisory

www.vulncheck.com/...n-in-trusted-proxy-control-ui-websocket (VulnCheck Advisory: OpenClaw < 2026.5.18 - Scope Elevation in trusted-proxy Control UI WebSocket) third-party-advisory

cve.org (CVE-2026-53821)

nvd.nist.gov (CVE-2026-53821)

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