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CVE-2026-45223

Full vulnerability record from the local CVENow database.

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.

Severity
HIGH
CVSS score
7.7 (v4.0)
Vulnerability status
Deferred
Source identifier
Published
2026-05-11 19:16:28.103000
Last modified
2026-10-26 18:10:00.173000
View original CVE JSON
{
  "id": "CVE-2026-45223",
  "sourceIdentifier": "[email protected]",
  "published": "2026-05-11T19:16:28.103",
  "lastModified": "2026-10-26T18:10:00.173",
  "vulnStatus": "Deferred",
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "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."
    },
    {
      "lang": "es",
      "value": "Crabbox antes de 0.9.0 contiene una vulnerabilidad de omisión de autenticación en la ruta de verificación de token de usuario del coordinador donde la función verifyUserToken() no logra rechazar cargas útiles que contienen una declaración de administrador, permitiendo a los atacantes escalar privilegios. Un atacante con acceso al token compartido no-administrador puede crear una carga útil de token de usuario con admin: true, firmarla usando HMAC-SHA256, y presentarla a rutas de coordinador solo para administradores para obtener acceso completo de administrador del coordinador, incluyendo visibilidad de arrendamientos, gestión del estado del pool y operaciones de liberación forzada."
    }
  ],
  "affected": [
    {
      "source": "[email protected]",
      "affectedData": [
        {
          "vendor": "openclaw",
          "product": "crabbox",
          "defaultStatus": "affected",
          "repo": "https://github.com/openclaw/crabbox",
          "packageURL": "pkg:github/openclaw/crabbox",
          "versions": [
            {
              "version": "0",
              "lessThan": "0.9.0",
              "versionType": "semver",
              "status": "affected"
            },
            {
              "version": "46079f6de7f10cf61bc47efebd0c143a41664898",
              "versionType": "git",
              "status": "unaffected"
            }
          ]
        }
      ]
    }
  ],
  "metrics": {
    "cvssMetricV40": [
      {
        "source": "[email protected]",
        "type": "Secondary",
        "cvssData": {
          "version": "4.0",
          "vectorString": "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",
          "baseScore": 7.7,
          "baseSeverity": "HIGH",
          "attackVector": "NETWORK",
          "attackComplexity": "LOW",
          "attackRequirements": "PRESENT",
          "privilegesRequired": "LOW",
          "userInteraction": "NONE",
          "vulnConfidentialityImpact": "HIGH",
          "vulnIntegrityImpact": "HIGH",
          "vulnAvailabilityImpact": "HIGH",
          "subConfidentialityImpact": "NONE",
          "subIntegrityImpact": "NONE",
          "subAvailabilityImpact": "NONE",
          "exploitMaturity": "NOT_DEFINED",
          "confidentialityRequirement": "NOT_DEFINED",
          "integrityRequirement": "NOT_DEFINED",
          "availabilityRequirement": "NOT_DEFINED",
          "modifiedAttackVector": "NOT_DEFINED",
          "modifiedAttackComplexity": "NOT_DEFINED",
          "modifiedAttackRequirements": "NOT_DEFINED",
          "modifiedPrivilegesRequired": "NOT_DEFINED",
          "modifiedUserInteraction": "NOT_DEFINED",
          "modifiedVulnConfidentialityImpact": "NOT_DEFINED",
          "modifiedVulnIntegrityImpact": "NOT_DEFINED",
          "modifiedVulnAvailabilityImpact": "NOT_DEFINED",
          "modifiedSubConfidentialityImpact": "NOT_DEFINED",
          "modifiedSubIntegrityImpact": "NOT_DEFINED",
          "modifiedSubAvailabilityImpact": "NOT_DEFINED",
          "Safety": "NOT_DEFINED",
          "Automatable": "NOT_DEFINED",
          "Recovery": "NOT_DEFINED",
          "valueDensity": "NOT_DEFINED",
          "vulnerabilityResponseEffort": "NOT_DEFINED",
          "providerUrgency": "NOT_DEFINED"
        }
      }
    ],
    "cvssMetricV31": [
      {
        "source": "[email protected]",
        "type": "Secondary",
        "cvssData": {
          "version": "3.1",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
          "baseScore": 8.8,
          "baseSeverity": "HIGH",
          "attackVector": "NETWORK",
          "attackComplexity": "LOW",
          "privilegesRequired": "LOW",
          "userInteraction": "NONE",
          "scope": "UNCHANGED",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "availabilityImpact": "HIGH"
        },
        "exploitabilityScore": 2.8,
        "impactScore": 5.9
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "timestamp": "2026-05-11T18:35:17.042648Z",
          "id": "CVE-2026-45223",
          "options": [
            {
              "exploitation": "poc"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "total"
            }
          ],
          "role": "CISA Coordinator",
          "version": "2.0.3"
        }
      }
    ]
  },
  "weaknesses": [
    {
      "source": "[email protected]",
      "type": "Secondary",
      "description": [
        {
          "lang": "en",
          "value": "CWE-290"
        }
      ]
    }
  ],
  "references": [
    {
      "url": "https://github.com/openclaw/crabbox/commit/46079f6de7f10cf61bc47efebd0c143a41664898",
      "source": "[email protected]"
    },
    {
      "url": "https://github.com/openclaw/crabbox/pull/64",
      "source": "[email protected]"
    },
    {
      "url": "https://github.com/openclaw/crabbox/releases/tag/v0.9.0",
      "source": "[email protected]"
    },
    {
      "url": "https://www.vulncheck.com/advisories/crabbox-authentication-bypass-via-admin-claim-injection",
      "source": "[email protected]"
    },
    {
      "url": "https://github.com/openclaw/crabbox/pull/64",
      "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0"
    }
  ]
}