OpenClaw before 2026.4.2 fails to enforce write scopes on the POST /sessions/:sessionKey/kill endpoint in identity-bearing HTTP modes. Read-scoped callers can terminate running subagent sessions by sending requests to this endpoint, bypassing authorization controls.
https://www.vulncheck.com/advisories/openclaw-authorization-bypass-in-session-termination-endpoint
https://github.com/openclaw/openclaw/security/advisories/GHSA-5hff-46vh-rxmw
https://github.com/openclaw/openclaw/commit/54a0878517167c6e49900498cf77420dadb74beb
Published: 2026-04-21
Updated: 2026-04-21
Base Score: 5.5
Vector: CVSS2#AV:N/AC:L/Au:S/C:P/I:P/A:N
Severity: Medium
Base Score: 5.4
Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N
Severity: Medium
Base Score: 5.3
Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N
Severity: Medium