CVE-2026-41298: OpenClaw < 2026.4.2 - Authorization Bypass in Session Termination Endpoint

Severity: medium (CVSS 5.4 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.2% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2026-04-21 · updated 2026-06-17
Weakness: CWE-862

Description

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.

Affected products

OpenClaw: before 2026.4.2 — fixed in 2026.4.2

How to fix

Upgrade to a fixed version: OpenClaw 2026.4.2. Check the vendor advisory for mitigations.

References

https://github.com/openclaw/openclaw/commit/54a0878517167c6e49900498cf77420dadb74beb
https://github.com/openclaw/openclaw/security/advisories/GHSA-5hff-46vh-rxmw
https://www.vulncheck.com/advisories/openclaw-authorization-bypass-in-session-termination-endpoint

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