EUVD-2026-21478

| CVE-2026-35666 HIGH
2026-04-10 VulnCheck GHSA-qm9x-v7cx-7rq4
7.7
CVSS 4.0
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CVSS Vector

CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/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
Low
User Interaction
None
Scope
X

Lifecycle Timeline

4
EUVD ID Assigned
Apr 10, 2026 - 16:30 euvd
EUVD-2026-21478
Analysis Generated
Apr 10, 2026 - 16:30 vuln.today
Patch Released
Apr 10, 2026 - 16:30 nvd
Patch available
CVE Published
Apr 10, 2026 - 16:03 nvd
HIGH 7.7

Description

OpenClaw before 2026.3.22 contains an allowlist bypass vulnerability in system.run approvals that fails to unwrap /usr/bin/time wrappers. Attackers can bypass executable binding restrictions by using an unregistered time wrapper to reuse approval state for inner commands.

Analysis

Allowlist bypass in OpenClaw before 2026.3.22 permits authenticated attackers to execute arbitrary commands by wrapping disallowed executables with /usr/bin/time. The vulnerability exploits incomplete validation in system.run approvals, which fail to detect time wrapper prefixes, allowing reuse of approval state for inner prohibited commands. …

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Remediation

Within 24 hours: Inventory all OpenClaw deployments and identify current versions in use. Within 7 days: Upgrade all OpenClaw instances to version 2026.3.22 or later; validate patch application across all systems. …

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Priority Score

38
Low Medium High Critical
KEV: 0
EPSS: +0.0
CVSS: +38
POC: 0

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EUVD-2026-21478 vulnerability details – vuln.today

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