OpenClaw before 2026.5.12 contains a shell option parsing vulnerability that allows combined POSIX shell flags to bypass exec revalidation checks.
Date: 2026-06
Affected: openclaw/openclaw
Attack vector: rce
Category: vulnerability-disclosure
Severity: High
CVE: CVE-2026-53806
CWE: CWE-367
CVSS: 8.8 (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H)

OpenClaw before 2026.5.12 contains a shell option parsing vulnerability that allows combined POSIX shell flags to bypass exec revalidation checks. Attackers can exploit this by using combined shell options to execute inline shell content without intended allowlist validation, potentially enabling unauthorized command execution when the affected feature is enabled.


Mitigations:

Architectural layers (MAESTRO):