CVE-2026-8629 openclaw CVE debrief

Who should care

Users of Crabbox prior to v0.12.0, administrators, and security teams should be aware of this vulnerability and take necessary actions to mitigate the risk. They should review the official advisory and CVE record to validate affected scope, severity, and vendor guidance.

Technical summary

CVE-2026-8629 is a privilege escalation vulnerability in Crabbox that allows users with shared visibility-only access to obtain Code, WebVNC, and Egress agent tickets by sending POST requests to ticket endpoints. This is due to insufficient access control checks on the /v1/leases/:id/code/ticket, /v1/leases/:id/webvnc/ticket, and /v1/leases/:id/egress/ticket endpoints. The vulnerability has a high CVSS score of 8.6 and is considered a high-severity issue.

Defensive priority

High

Recommended defensive actions

• Upgrade Crabbox to v0.12.0 or later
• Restrict access to ticket endpoints
• Monitor for suspicious activity
• Implement additional security measures to prevent privilege escalation
• Review compensating controls for exposed systems while remediation is scheduled and verified
• Check relevant monitoring, detection, and logs for exposed assets that need extra review
• Track exceptions, retest remediated assets, and close the item only after evidence is documented

Evidence notes

The CVE record was published on 2026-05-14T20:17:21.567Z and last modified on 2026-07-14T23:17:39.123Z. The NVD entry is currently Deferred. The source details are limited, and further verification is needed to confirm the affected scope and severity. Defenders should verify the official advisory and CVE record for accurate information.

Sources and 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.