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Description

OpenClaw before 2026.3.31 contains a sandbox bypass vulnerability allowing attackers to escalate privileges via heartbeat context inheritance and senderIsOwner parameter manipulation. Attackers can exploit improper context validation to bypass sandbox restrictions and achieve unauthorized privilege escalation.

PUBLISHED Reserved 2026-04-20 | Published 2026-04-20 | Updated 2026-04-21 | Assigner VulnCheck




CRITICAL: 9.0CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H

CRITICAL: 9.9CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

Problem types

CWE-648: Incorrect Use of Privileged APIs

Product status

Default status
unaffected

Any version before 2026.3.31
affected

2026.3.31 (semver)
unaffected

Credits

AntAISecurityLab reporter

References

github.com/...enclaw/security/advisories/GHSA-g5cg-8x5w-7jpm (GitHub Security Advisory (GHSA-g5cg-8x5w-7jpm)) vendor-advisory

github.com/...ommit/a30214a624946fc5c85c9558a27c1580172374fd (Patch Commit) patch

www.vulncheck.com/...nheritance-and-senderisowner-escalation (VulnCheck Advisory: OpenClaw < 2026.3.31 - Sandbox Bypass via Heartbeat Context Inheritance and senderIsOwner Escalation) third-party-advisory

cve.org (CVE-2026-41329)

nvd.nist.gov (CVE-2026-41329)

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