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CVE-2026-53819 OpenClaw CVE debrief

CVE-2026-53819 is a HIGH-severity vulnerability in OpenClaw before version 2026.5.27. The vulnerability allows for arbitrary code execution during skill setup when an attacker with access to a trusted operator workspace can override the Homebrew executable selection using workspace .env files.

Vendor
OpenClaw
Product
Unknown
CVSS
HIGH 8.7
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 2026.5.27, especially those with trusted operator workspaces, should be aware of this vulnerability and take necessary actions to mitigate it.

Technical summary

The vulnerability exists in the skill install flows of OpenClaw, where workspace .env files can override the Homebrew executable selection. This allows attackers with access to trusted operator workspaces to execute unintended Homebrew-compatible executables during skill setup, potentially compromising the system.

Defensive priority

HIGH

Recommended defensive actions

  • Update OpenClaw to version 2026.5.27 or later.
  • Restrict access to trusted operator workspaces.
  • Monitor skill setup processes for suspicious activity.

Evidence notes

The vulnerability has a CVSS score of 8.7 and is classified as HIGH severity. The CVE was published on 2026-06-11T21:16:24.227Z and modified on 2026-06-12T20:08:46.067Z.

Sources and references

Verified primary and authoritative sources

  • CVE-2026-53819 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2026-53819

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

  • CVE-2026-53819 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2026-53819

    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.