PatchSiren cyber security CVE debrief
CVE-2026-53853 OpenClaw CVE debrief
CVE-2026-53853 is a HIGH-severity vulnerability in OpenClaw, a software that was vulnerable to an argument pattern validation bypass in its exec allowlist. The vulnerability, which was published on 2026-06-16T19:17:02.650Z and modified on 2026-06-16T20:42:46.200Z, allows attackers to execute disallowed arguments for allowlisted executables on Linux and macOS systems. This could potentially enable unauthorized file access, network access, or command execution. The CVSS score for this vulnerability is 7.6.
- Vendor
- OpenClaw
- Product
- Unknown
- CVSS
- HIGH 7.6
- CISA KEV
- Not listed in stored evidence
- Original CVE published
- 2026-06-16
- Original CVE updated
- 2026-06-18
- Advisory published
- 2026-06-16
- Advisory updated
- 2026-06-18
Who should care
Users of OpenClaw before version 2026.5.12 on Linux and macOS systems should be aware of this vulnerability and take steps to mitigate it.
Technical summary
The vulnerability is caused by an argument pattern validation bypass in the exec allowlist of OpenClaw. This allows attackers to bypass configured argPattern restrictions by directly invoking allowlisted executables with unrestricted arguments.
Defensive priority
HIGH
Recommended defensive actions
- Update OpenClaw to version 2026.5.12 or later.
- Restrict access to allowlisted executables to prevent unauthorized invocation.
- Monitor system logs for suspicious activity related to OpenClaw executables.
Evidence notes
The CVE record for CVE-2026-53853 was obtained from the official CVE.org website [cve-org]. Additional information was obtained from the NVD detail page [nvd] and source references [ref-4], [ref-5].
Official resources
CVE-2026-53853 was disclosed by Vulncheck on 2026-06-16T19:17:02.650Z.