EUVD-2026-21450Severity by source
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:L/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
Primary rating from NVD · only source for this CVE.
CVSS VectorNVD
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:L/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
Lifecycle Timeline
4Blast Radius
ecosystem impact- 5 npm packages depend on openclaw (5 direct, 0 indirect)
Ecosystem-wide dependent count for version 2026.3.22.
DescriptionCVE.org
OpenClaw before 2026.3.22 contains an authorization bypass vulnerability in interactive callback dispatch that allows non-allowlisted senders to execute action handlers. Attackers can bypass sender authorization checks by dispatching callbacks before normal security validation completes, enabling unauthorized actions.
AnalysisAI
OpenClaw before version 2026.3.22 suffers from an authorization bypass in its interactive callback dispatch mechanism that permits unauthenticated remote attackers to execute action handlers without sender allowlist validation. The vulnerability exploits a race condition or timing gap where callbacks are processed before security checks complete, enabling unauthorized state modification and availability impact. No public exploit code or active exploitation has been confirmed at time of analysis, but the low attack complexity and lack of authentication requirements make this a practical threat to exposed OpenClaw deployments.
Technical ContextAI
OpenClaw's interactive callback dispatch system implements sender authorization through allowlist validation; however, the timing of security checks against callback execution creates a window where non-allowlisted senders can invoke action handlers. This is a classic authorization bypass vulnerability classified as CWE-696 (Incorrect Behavior Order), where the order of operations permits security enforcement to be circumvented. The affected component validates sender identity through allowlist mechanisms, but the race condition in the dispatch flow allows callbacks to execute before these checks complete. All versions of OpenClaw prior to 2026.3.22 are vulnerable; the fix involves reordering the authorization validation to occur before callback execution begins.
RemediationAI
Upgrade OpenClaw to version 2026.3.22 or later, which includes fixes applied in commits 630f1479c44f78484dfa21bb407cbe6f171dac87 and a47722de7e3c9cbda8d5512747ca7e3bb8f6ee66 that reorder authorization validation to execute before callback dispatch. Verify the upgrade by checking that sender allowlist validation occurs as the first step in the callback handler chain. No workarounds are documented; patching is the primary remediation. Review the official advisory at https://github.com/openclaw/openclaw/security/advisories/GHSA-8883-9w57-vwv6 and https://www.vulncheck.com/advisories/openclaw-unauthorized-action-execution-via-callback-dispatch for additional context.
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Same weakness CWE-696 – Incorrect Behavior Order
View allSame technique Authentication Bypass
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External POC / Exploit Code
Leaving vuln.today