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PatchSiren cyber security CVE debrief

CVE-2026-45223 openclaw CVE debrief

CVE-2026-45223 is an authentication bypass vulnerability in Crabbox before 0.9.0. The vulnerability exists in the coordinator user-token verification path where the verifyUserToken() function fails to reject payloads containing an admin claim. This allows attackers to escalate privileges by crafting a user-token payload with admin: true, signing it using HMAC-SHA256, and presenting it to admin-only coordinator routes. The vulnerability could lead to unauthorized access to sensitive operations such as lease visibility, pool state management, and forced release operations. Users of Crabbox before version 0.9.0 should be aware of this vulnerability and take steps to mitigate it.

Vendor
openclaw
Product
crabbox
CVSS
HIGH 7.7
CISA KEV
Not listed in stored evidence
Original CVE published
2026-05-11
Original CVE updated
2026-07-14
Advisory published
2026-05-11
Advisory updated
2026-07-14

Who should care

Users of Crabbox before version 0.9.0 should be aware of this vulnerability and take steps to mitigate it. This vulnerability could allow an attacker with access to the shared non-admin token to gain full coordinator admin access, including lease visibility, pool state management, and forced release operations. Operators, platform administrators, vulnerability management teams, and security teams should review the official CVE record and vendor guidance to determine the affected scope and severity.

Technical summary

The CVE-2026-45223 vulnerability is caused by the verifyUserToken() function failing to properly verify user tokens. Specifically, it does not reject payloads containing an admin claim. An attacker can exploit this by crafting a user-token payload with admin: true, signing it with HMAC-SHA256, and using it to access admin-only coordinator routes. This could lead to unauthorized access to sensitive operations such as lease visibility, pool state management, and forced release operations.

Defensive priority

High

Recommended defensive actions

  • Upgrade Crabbox to version 0.9.0 or later
  • Restrict access to admin-only coordinator routes
  • Monitor for suspicious activity related to user token verification
  • Implement additional security measures to prevent privilege escalation
  • Review compensating controls for exposed systems while remediation is scheduled and verified
  • Check relevant monitoring, detection, and logs for exposed assets that need extra review
  • Track exceptions, retest remediated assets, and close the item only after evidence is documented

Evidence notes

The CVE record was published on 2026-05-11T19:16:28.103Z and was last modified on 2026-07-14T21:16:54.963Z. The NVD entry is currently Deferred. There is limited information available about the vulnerability from the source item. Defenders should verify the affected scope and severity with the official CVE record and vendor guidance. The Crabbox coordinator user-token verification path vulnerability allows attackers to escalate privileges by crafting a user-token payload with admin: true, signing it using HMAC-SHA256, and presenting it to admin-only coordinator routes.

Official resources

AI-assisted PatchSiren debrief based on the supplied source corpus. The CVE record was published on 2026-05-11T19:16:28.103Z and has not been modified since then. The NVD entry is currently Deferred.