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PatchSiren cyber security CVE debrief

CVE-2026-53831 OpenClaw CVE debrief

CVE-2026-53831 is a high-severity policy enforcement vulnerability in OpenClaw before version 2026.5.18. The vulnerability is located in the system.run safe-bin allowlist validation and allows shell expansion to modify command interpretation on POSIX nodes. Authenticated operators can exploit shell metacharacters in approved commands to read unintended node-local files and expose sensitive configuration data. The CVSS score for this vulnerability is 7.6, indicating a high severity.

Vendor
OpenClaw
Product
Unknown
CVSS
HIGH 7.6
CISA KEV
Not listed in stored evidence
Original CVE published
2026-06-12
Original CVE updated
2026-06-16
Advisory published
2026-06-12
Advisory updated
2026-06-16

Who should care

Users of OpenClaw before version 2026.5.18, particularly those with authenticated operators, should be aware of this vulnerability and take steps to mitigate it.

Technical summary

The vulnerability is caused by inadequate validation of shell metacharacters in approved commands in the system.run safe-bin allowlist. This allows authenticated operators to exploit shell expansion and read unintended node-local files, potentially exposing sensitive configuration data.

Defensive priority

High

Recommended defensive actions

  • Update OpenClaw to version 2026.5.18 or later.
  • Restrict access to authenticated operators.
  • Monitor for suspicious activity.

Evidence notes

The CVE record and NVD detail can be found at [cve-org] and [nvd], respectively. Additional information can be found in the source references [ref-4] and [ref-5].

Sources and references

Verified primary and authoritative sources

  • CVE-2026-53831 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2026-53831

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

  • CVE-2026-53831 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2026-53831

    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.