CVE-2026-8629

Crabbox prior to v0.12.0 contains a privilege escalation vulnerability that allows users with shared visibility-only access to obtain Code, WebVNC, and Egress agent tickets by sending POST requests to ticket endpoints. Attackers can exploit insufficient access control checks on the /v1/leases/:id/code/ticket, /v1/leases/:id/webvnc/ticket, and /v1/leases/:id/egress/ticket endpoints to obtain bridge-agent tickets and impersonate trusted lease-side bridges despite having only visibility permissions.

CVSS 4.0

8.6CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N

CVSS 3.1

8.1CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N

EPSS

0.3% chance of exploitation in the next 30 days; higher than 26% of CVEs (scores of 2026-10-25)

CWE

CWE-639

Published

2026-05-14

Modified

2026-10-26

Record from

the NVD, synced 2026-10-26

References

• https://github.com/openclaw/crabbox/commit/95cb30dc7dbaa1fef690a42ef6ac1cb6e307a191
• https://github.com/openclaw/crabbox/pull/71
• https://github.com/openclaw/crabbox/releases/tag/v0.12.0
• https://www.vulncheck.com/advisories/crabbox-privilege-escalation-via-agent-ticket-endpoints
• https://github.com/openclaw/crabbox/pull/71

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