PatchSiren

PatchSiren cyber security CVE debrief

CVE-2026-53843 OpenClaw CVE debrief

CVE-2026-53843 is a HIGH-severity vulnerability in OpenClaw before version 2026.5.26. The vulnerability allows an authorization bypass, enabling a paired device to regain WebSocket node-level access without renewed approval after revocation. This weakness in revocation controls can maintain unauthorized access longer than intended. The Common Vulnerability Scoring System (CVSS) score for this vulnerability is 8.7.

Vendor
OpenClaw
Product
Unknown
CVSS
HIGH 8.7
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 2026.5.26 should be aware of this vulnerability and take necessary actions to mitigate the risk.

Technical summary

The vulnerability exists in OpenClaw's handling of pairing-scoped device sessions. Specifically, a surviving session can re-establish node token authority after revocation, allowing attackers with a paired device to regain access without renewed approval.

Defensive priority

HIGH

Recommended defensive actions

  • Upgrade to OpenClaw version 2026.5.26 or later.
  • Review and update access controls for paired devices.
  • Monitor for suspicious activity related to WebSocket node-level access.

Evidence notes

The CVE record and details were obtained from official sources, including CVE.org and the National Vulnerability Database (NVD).

Sources and references

Verified primary and authoritative sources

  • CVE-2026-53843 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2026-53843

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

  • CVE-2026-53843 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2026-53843

    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.