CVE-2026-32918: OpenClaw < 2026.3.11 - Session Sandbox Escape via session_status Tool

Severity: high (CVSS 8.4 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.1% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2026-03-29 · updated 2026-06-17
Weakness: CWE-863

Description

OpenClaw before 2026.3.11 contains a session sandbox escape vulnerability in the session_status tool that allows sandboxed subagents to access parent or sibling session state. Attackers can supply arbitrary sessionKey values to read or modify session data outside their sandbox scope, including persisted model overrides.

Affected products

OpenClaw: before 2026.3.11 — fixed in 2026.3.11

How to fix

Upgrade to a fixed version: OpenClaw 2026.3.11. Check the vendor advisory for mitigations.

References

https://github.com/openclaw/openclaw/security/advisories/GHSA-wcxr-59v9-rxr8
https://www.vulncheck.com/advisories/openclaw-session-sandbox-escape-via-session-status-tool

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