FKIE_CVE-2026-71862

Vulnerability from fkie_nvd - Published: 2026-08-21 18:16 - Updated: 2026-08-21 22:16
Severity
7.5 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Summary
Checkmate is an open-source, self-hosted tool designed to track and monitor server hardware, uptime, response times, and incidents in real-time with beautiful visualizations. From 3.3.0 until 3.9.2, enabling the global showURL setting causes the unauthenticated GET /api/v1/status-page/:url endpoint to return complete monitor objects from server/src/controllers/statusPageController.ts. The response includes the secret field used by HttpProvider.ts as an HTTP Authorization credential, even though BaseStatusPage.tsx does not display that value, allowing visitors to extract credentials from the JSON response and use them against monitored services. This issue is fixed in version 3.9.2.
References
security-advisories@github.comhttps://github.com/bluewave-labs/Checkmate/commit/cc1814f507041bb0f64845bed5d5442c21e920f2
security-advisories@github.comhttps://github.com/bluewave-labs/Checkmate/pull/3758
security-advisories@github.comhttps://github.com/bluewave-labs/Checkmate/releases/tag/v3.9.2
security-advisories@github.comhttps://github.com/bluewave-labs/Checkmate/security/advisories/GHSA-3m74-8cg9-rp8j
Impacted products
Vendor Product Version
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "product": "Checkmate",
          "vendor": "bluewave-labs",
          "versions": [
            {
              "status": "affected",
              "version": "\u003e= 3.3.0, \u003c 3.9.2"
            }
          ]
        }
      ],
      "source": "security-advisories@github.com"
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "Checkmate is an open-source, self-hosted tool designed to track and monitor server hardware, uptime, response times, and incidents in real-time with beautiful visualizations. From 3.3.0 until 3.9.2, enabling the global showURL setting causes the unauthenticated GET /api/v1/status-page/:url endpoint to return complete monitor objects from server/src/controllers/statusPageController.ts. The response includes the secret field used by HttpProvider.ts as an HTTP Authorization credential, even though BaseStatusPage.tsx does not display that value, allowing visitors to extract credentials from the JSON response and use them against monitored services. This issue is fixed in version 3.9.2."
    }
  ],
  "id": "CVE-2026-71862",
  "lastModified": "2026-08-21T22:16:43.993",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "NONE",
          "baseScore": 7.5,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "NONE",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N",
          "version": "3.1"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 3.6,
        "source": "security-advisories@github.com",
        "type": "Secondary"
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2026-71862",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "yes"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2026-08-21T21:09:30.656386Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2026-08-21T18:16:50.730",
  "references": [
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/bluewave-labs/Checkmate/commit/cc1814f507041bb0f64845bed5d5442c21e920f2"
    },
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/bluewave-labs/Checkmate/pull/3758"
    },
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/bluewave-labs/Checkmate/releases/tag/v3.9.2"
    },
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/bluewave-labs/Checkmate/security/advisories/GHSA-3m74-8cg9-rp8j"
    }
  ],
  "sourceIdentifier": "security-advisories@github.com",
  "vulnStatus": "Received",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-200"
        },
        {
          "lang": "en",
          "value": "CWE-522"
        }
      ],
      "source": "security-advisories@github.com",
      "type": "Secondary"
    }
  ]
}



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