CVE-2026-8629
Crabbox < v0.12.0 Privilege Escalation via Agent Ticket Endpoints
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.
Fixes and workarounds
Fix
The reporting source identifies this reference as a patch. Check the advisory for affected versions and supported release branches.
Source: CNA: VulnCheckFix
The reporting source identifies this reference as a patch. Check the advisory for affected versions and supported release branches.
Source: CNA: VulnCheckAffected products and versions
| Product | Versions | Authority |
|---|---|---|
| crabbox openclaw openclaw/crabbox
github |
≥ 0; < 0.12.0 (affected, semver) 95cb30dc7dbaa1fef690a42ef6ac1cb6e307a191 (unaffected, git) Other versions: affected |
CNA: VulnCheck |
Version ranges are source assertions. Check the vendor advisory and your installed configuration before determining exposure.
CVSS assessments
| Version / score | Vector | Authority |
|---|---|---|
| 4.0 / 8.6 high |
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N | CNA: VulnCheck |
| 3.1 / 8.1 high |
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N | CNA: VulnCheck |
Exploit evidence
- https://github.com/openclaw/crabbox/pull/71
exploit · ADP: CISA-ADP
References
- https://github.com/openclaw/crabbox/releases/tag/v0.12.0CNA: VulnCheck · release-notes
- https://github.com/openclaw/crabbox/pull/71CNA: VulnCheck · issue-tracking, patch
- https://github.com/openclaw/crabbox/commit/95cb30dc7dbaa1fef690a42ef6ac1cb6e307a191CNA: VulnCheck · patch
- https://www.vulncheck.com/advisories/crabbox-privilege-escalation-via-agent-ticket-endpointsCNA: VulnCheck · third-party-advisory
- https://github.com/openclaw/crabbox/pull/71ADP: CISA-ADP · exploit
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