CVE-2026-45223 json
Crabbox < 0.9.0 Authentication Bypass via Admin Claim Injection
published 2026-05-11 5 mo ago modified 2026-11-08 24 h ago also EUVD-2026-29197
- cvss
- 8.8
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.4%
- EPSS 0.4% chance of exploitation in 30 days, percentile 32%
- public exploits
- 0
- none known
Summary
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.
Patch / fix
- openclaw crabbox 0.9.0
- github.com/openclaw/crabbox@46079f6 commit
- github.com/openclaw/crabbox#64 pull request
- github.com/openclaw/crabbox/releases/tag/v0.9.0 release
CISA SSVC
- Exploitation
- Proof of concept is public
- Automatable
- no
- Technical impact
- total
- Assessed
- 5 mo ago
Exploit prediction
0.38% chance of exploitation in the next 30 days, higher than 32% of all scored CVEs (FIRST EPSS, 2026-11-08).
Exploits and checks
- github.com https://github.com/openclaw/crabbox/pull/64 referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 4.0 | 7.7 | CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N |
| CNA | 3.1 | 8.8 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
| CNA | 4.0 | 7.7 | CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X |
Affected products
- openclaw crabbox
Classification
- Weakness
-
- CWE-290 Authentication Bypass by Spoofing
References
-
github.com
/openclaw/crabbox/pull/64
issue-tracking, patch, exploit
-
github.com
/openclaw/crabbox/commit/46079f6de7f10cf61bc47efebd0c143a41664898
patch
-
github.com
/openclaw/crabbox/releases/tag/v0.9.0
release-notes
-
vulncheck.com
/advisories/crabbox-authentication-bypass-via-admin-claim-injection
third-party-advisory
Sources
- CVE List CVE-2026-45223
- NVD CVE-2026-45223
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