CVE-2026-61743 (GCVE-0-2026-61743)

Vulnerability from cvelistv5 – Published: 2026-09-21 21:38 – Updated: 2026-09-21 21:38
VLAI
Title
Chartbrew: DNS Rebinding SSRF Bypass in Outbound Request Validation
Summary
Chartbrew is an open-source web application that can connect directly to databases and APIs and use the data to create charts. Prior to 5.2.2, Chartbrew's server/modules/safeRequest.js calls validateOutboundUrl() to resolve and validate a target hostname, but request-promise performs a separate DNS resolution for the actual connection. An authenticated user who can create or test API connections and controls the target DNS name can return a public address during validation and a private address during the request, bypassing the protections implemented by server/modules/outboundTargetPolicy.js. This DNS rebinding condition can expose internal services, localhost resources, or cloud metadata endpoints. This issue is fixed in version 5.2.2.
Severity
6.3 (Medium)
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:N/A:N
CWE
  • CWE-350 - Reliance on Reverse DNS Resolution for a Security-Critical Action
Assigner
References
Impacted products
Vendor Product Version CPE status
chartbrew chartbrew Affected: < 5.2.2
guessed Create a notification for this product.
Show details on NVD website
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{
  "containers": {
    "cna": {
      "affected": [
        {
          "product": "chartbrew",
          "vendor": "chartbrew",
          "versions": [
            {
              "status": "affected",
              "version": "\u003c 5.2.2"
            }
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          "value": "Chartbrew is an open-source web application that can connect directly to databases and APIs and use the data to create charts. Prior to 5.2.2, Chartbrew\u0027s server/modules/safeRequest.js calls validateOutboundUrl() to resolve and validate a target hostname, but request-promise performs a separate DNS resolution for the actual connection. An authenticated user who can create or test API connections and controls the target DNS name can return a public address during validation and a private address during the request, bypassing the protections implemented by server/modules/outboundTargetPolicy.js. This DNS rebinding condition can expose internal services, localhost resources, or cloud metadata endpoints. This issue is fixed in version 5.2.2."
        }
      ],
      "metrics": [
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          "cvssV3_1": {
            "attackComplexity": "HIGH",
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            "availabilityImpact": "NONE",
            "baseScore": 6.3,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "NONE",
            "privilegesRequired": "LOW",
            "scope": "CHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:N/A:N",
            "version": "3.1"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-350",
              "description": "CWE-350: Reliance on Reverse DNS Resolution for a Security-Critical Action",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-09-21T21:38:47.673Z",
        "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "shortName": "GitHub_M"
      },
      "references": [
        {
          "name": "https://github.com/chartbrew/chartbrew/security/advisories/GHSA-9537-vm84-j26f",
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://github.com/chartbrew/chartbrew/security/advisories/GHSA-9537-vm84-j26f"
        },
        {
          "name": "https://github.com/chartbrew/chartbrew/commit/d38d745fe9e45563be8c33e4c7a17788ee6f13a3",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/chartbrew/chartbrew/commit/d38d745fe9e45563be8c33e4c7a17788ee6f13a3"
        },
        {
          "name": "https://github.com/chartbrew/chartbrew/releases/tag/v5.2.2",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/chartbrew/chartbrew/releases/tag/v5.2.2"
        }
      ],
      "source": {
        "advisory": "GHSA-9537-vm84-j26f",
        "discovery": "UNKNOWN"
      },
      "title": "Chartbrew: DNS Rebinding SSRF Bypass in Outbound Request Validation"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
    "assignerShortName": "GitHub_M",
    "cveId": "CVE-2026-61743",
    "datePublished": "2026-09-21T21:38:47.673Z",
    "dateReserved": "2026-07-10T18:59:00.047Z",
    "dateUpdated": "2026-09-21T21:38:47.673Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "nvd": {
      "cve": {
        "affected": [
          {
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              {
                "product": "chartbrew",
                "vendor": "chartbrew",
                "versions": [
                  {
                    "status": "affected",
                    "version": "\u003c 5.2.2"
                  }
                ]
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            ],
            "source": "security-advisories@github.com"
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        ],
        "cveTags": [],
        "descriptions": [
          {
            "lang": "en",
            "value": "Chartbrew is an open-source web application that can connect directly to databases and APIs and use the data to create charts. Prior to 5.2.2, Chartbrew\u0027s server/modules/safeRequest.js calls validateOutboundUrl() to resolve and validate a target hostname, but request-promise performs a separate DNS resolution for the actual connection. An authenticated user who can create or test API connections and controls the target DNS name can return a public address during validation and a private address during the request, bypassing the protections implemented by server/modules/outboundTargetPolicy.js. This DNS rebinding condition can expose internal services, localhost resources, or cloud metadata endpoints. This issue is fixed in version 5.2.2."
          }
        ],
        "id": "CVE-2026-61743",
        "lastModified": "2026-09-21T22:16:57.823",
        "metrics": {
          "cvssMetricV31": [
            {
              "cvssData": {
                "attackComplexity": "HIGH",
                "attackVector": "NETWORK",
                "availabilityImpact": "NONE",
                "baseScore": 6.3,
                "baseSeverity": "MEDIUM",
                "confidentialityImpact": "HIGH",
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                "privilegesRequired": "LOW",
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                "userInteraction": "NONE",
                "vectorString": "CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:N/A:N",
                "version": "3.1"
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              "impactScore": 4.0,
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              "type": "Secondary"
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        "references": [
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            "url": "https://github.com/chartbrew/chartbrew/commit/d38d745fe9e45563be8c33e4c7a17788ee6f13a3"
          },
          {
            "source": "security-advisories@github.com",
            "url": "https://github.com/chartbrew/chartbrew/releases/tag/v5.2.2"
          },
          {
            "source": "security-advisories@github.com",
            "url": "https://github.com/chartbrew/chartbrew/security/advisories/GHSA-9537-vm84-j26f"
          }
        ],
        "sourceIdentifier": "security-advisories@github.com",
        "vulnStatus": "Received",
        "weaknesses": [
          {
            "description": [
              {
                "lang": "en",
                "value": "CWE-350"
              }
            ],
            "source": "security-advisories@github.com",
            "type": "Primary"
          }
        ]
      }
    }
  }
}



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