CVE-2026-53836

EUVD-2026-36624
OpenClaw before 2026.5.12 contains an allowlist bypass vulnerability in PowerShell encoded-command handling that allows attackers to execute encoded commands using abbreviated flag aliases not recognized by the allowlist parser. Remote authenticated operators can bypass execution allowlist checks by using unrecognized encoded-command alias forms to execute arbitrary PowerShell content.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
VulnCheckCNA
8.8 HIGH
NETWORK
LOW
LOW
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Base Score
CVSS 3.x
EPSS Score
Percentile: 38%
Early Detection
Affected products identified ahead of NVD analysis through intelligence sources.
VendorProductVersionSource
openclawopenclaw
𝑥
< 2026.5.12
CNA
Common Weakness Enumeration
References
https://github.com/openclaw/openclaw/security/advisories/GHSA-j472-gf56-x589
https://www.vulncheck.com/advisories/openclaw-allowlist-bypass-via-powershell-encoded-command-aliases