PatchSiren

PatchSiren cyber security CVE debrief

CVE-2026-53806 OpenClaw CVE debrief

CVE-2026-53806 is a HIGH severity vulnerability in OpenClaw that allows combined POSIX shell flags to bypass exec revalidation checks, potentially enabling unauthorized command execution. The vulnerability has a CVSS score of 7.7 and was published on 2026-06-11T21:16:22.443Z. The affected product is OpenClaw, and the vulnerability is tracked under CWE-367.

Vendor
OpenClaw
Product
Unknown
CVSS
HIGH 7.7
CISA KEV
Not listed in stored evidence
Original CVE published
2026-06-11
Original CVE updated
2026-06-12
Advisory published
2026-06-11
Advisory updated
2026-06-12

Who should care

Users of OpenClaw before version 2026.5.12 should apply the patch to prevent exploitation of this vulnerability.

Technical summary

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.

Defensive priority

HIGH

Recommended defensive actions

  • Upgrade OpenClaw to version 2026.5.12 or later to fix the vulnerability.
  • Refer to [ref-4](https://github.com/openclaw/openclaw/security/advisories/GHSA-vxx3-6hc9-7cc3) and [ref-5](https://www.vulncheck.com/advisories/openclaw-shell-option-parsing-bypass-in-exec-revalidation) for additional -
  • For more information, see the CVE record at [cve-org](https://www.cve.org/CVERecord?id=CVE-2026-53806) and the NVD detail at [nvd](https://nvd.nist.gov/vuln/detail/CVE-2026-53806).

Evidence notes

The vulnerability was published on 2026-06-11T21:16:22.443Z and modified on 2026-06-12T19:33:05.493Z. The CVSS vector is 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.

Sources and references

Verified primary and authoritative sources

  • CVE-2026-53806 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2026-53806

    CVE Program - Official CVE Program record with source-provided CVE metadata.

  • CVE-2026-53806 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2026-53806

    NIST National Vulnerability Database - Official NIST NVD detail page and source-specific vulnerability assessment.

Supplemental references

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.