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OpenClaw CVE-2026-43566

| EUVD-2026-27283 CRITICAL
Incomplete List of Disallowed Inputs (CWE-184)
2026-05-05 VulnCheck
9.1
CVSS 4.0
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CVSS VectorNVD

CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
X

Lifecycle Timeline

2
Source Code Evidence Fetched
May 05, 2026 - 12:20 vuln.today
Analysis Generated
May 05, 2026 - 12:20 vuln.today

DescriptionNVD

OpenClaw versions 2026.4.7 before 2026.4.14 contain a privilege escalation vulnerability where heartbeat owner downgrade logic skips webhook wake events carrying untrusted content. Attackers can exploit this by sending untrusted webhook wake events to preserve owner-like execution context when the run should have been downgraded.

AnalysisAI

Privilege escalation in OpenClaw npm package versions 2026.4.7 through 2026.4.13 allows remote unauthenticated attackers to preserve elevated execution context by sending malicious webhook wake events. The heartbeat owner downgrade logic incorrectly skips validation of untrusted webhook payloads, enabling attackers to maintain owner-like privileges during runs that should operate with reduced permissions. …

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RemediationAI

Within 24 hours: Inventory all OpenClaw npm package deployments across development, CI/CD, and production environments and identify affected versions (2026.4.7-2026.4.13). Within 7 days: Upgrade all instances to OpenClaw version 2026.4.14 or later across all environments. …

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CVE-2026-43566 vulnerability details – vuln.today

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