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.
{
"cna_assigner": "VulnCheck",
"cwe_ids": [
"CWE-290"
],
"osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/45xxx/CVE-2026-45223.json"
}{
"extracted_events": [
{
"range": [
{
"introduced": "0"
},
{
"fixed": "0.9.0"
}
],
"source": "AFFECTED_FIELD",
"strategy": "StandardRange"
},
{
"original_tag": "v0.9.0",
"range": [
{
"fixed": "b5a3561fa77f8ebdce046bf54841283e96df05c0"
}
],
"source": "REFERENCES_TAG"
},
{
"range": [
{
"fixed": "46079f6de7f10cf61bc47efebd0c143a41664898"
}
],
"source": "REFERENCES_COMMIT"
}
]
}