CVE-2026-45223
Crabbox < 0.9.0 Authentication Bypass via Admin Claim Injection
CVSS Score
8.8
EPSS Score
0.0%
EPSS Percentile
0th
Crabbox before 0.9.0 contains an authentication bypass vulnerability in the coordinator user-token verification path where the verifyUserToken() function fails to reject payloads containing an admin claim, allowing attackers to escalate privileges. An attacker with access to the shared non-admin token can craft a user-token payload with admin: true, sign it using HMAC-SHA256, and present it to admin-only coordinator routes to gain full coordinator admin access including lease visibility, pool state management, and forced release operations.
| CWE | CWE-290 |
| Vendor | openclaw |
| Product | crabbox |
| Published | May 11, 2026 |
| Last Updated | May 11, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High
Affected Versions
openclaw / crabbox
0 < 0.9.0
References
github.com: https://github.com/openclaw/crabbox/releases/tag/v0.9.0 github.com: https://github.com/openclaw/crabbox/pull/64 github.com: https://github.com/openclaw/crabbox/commit/46079f6de7f10cf61bc47efebd0c143a41664898 vulncheck.com: https://www.vulncheck.com/advisories/crabbox-authentication-bypass-via-admin-claim-injection
Credits
Chia Min Jun Lennon