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Vulnerability record · CVE-2026-45223 · published 11 May 2026

CVE-2026-45223: Authentication bypass by spoofing vulnerability

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.

7.7 CVSS 4.0 High EPSS 0.69% · top 49.1% CWE-290 · Authentication bypass by spoofing Deferred
7.7CVSS 4.0 base score
0.69%EPSS exploitation probability, 30 days
NoNot in CISA KEV
0Affected product versions listed by NVD
5References
14 Jul 2026Last modified by NVD

Description

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.

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:

References

LinkTags
https://github.com/openclaw/crabbox/commit/46079f6de7f10cf61bc47efebd0c143a41664898
https://github.com/openclaw/crabbox/pull/64
https://github.com/openclaw/crabbox/releases/tag/v0.9.0
https://www.vulncheck.com/advisories/crabbox-authentication-bypass-via-admin-claim-injection
https://github.com/openclaw/crabbox/pull/64

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Source: NIST National Vulnerability Database (record CVE-2026-45223), CISA KEV, FIRST EPSS (scores of 2026-09-28). This page is refreshed as NVD updates the record.