What’s Vulnerable › Vulnerabilities

CVE-2026-44997: OpenClaw < 2026.4.22 - Security Envelope Constraint Bypass in ACP Child Sessions

• Severity: medium (CVSS 4.3 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: 2026-05-11 · updated 2026-06-17
• Weakness: CWE-266

Description

OpenClaw before 2026.4.22 contains a security envelope constraint bypass vulnerability allowing restricted subagents to spawn ACP child sessions that fail to inherit depth, child-count limits, control scope, or target-agent restrictions. Attackers can exploit this by spawning child sessions that bypass subagent-only constraints, potentially escalating privileges or accessing restricted resources.

Affected products

• OpenClaw: before 2026.4.22 — fixed in 2026.4.22

How to fix

Upgrade to a fixed version: OpenClaw 2026.4.22. Check the vendor advisory for mitigations.

References

• https://github.com/openclaw/openclaw/commit/31160dc069b7cc5d833b39c53736a41ad3befda2
• https://github.com/openclaw/openclaw/security/advisories/GHSA-q3jj-46pq-826r
• https://www.vulncheck.com/advisories/openclaw-security-envelope-constraint-bypass-in-acp-child-sessions

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