Chartbrew: DNS Rebinding SSRF Bypass in Outbound Request Validation

{
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "cveMetadata": {
    "cveId": "CVE-2026-61743",
    "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
    "assignerShortName": "GitHub_M",
    "dateUpdated": "2026-09-21T21:38:47.673Z",
    "dateReserved": "2026-07-10T18:59:00.047Z",
    "datePublished": "2026-09-21T21:38:47.673Z",
    "state": "PUBLISHED"
  },
  "containers": {
    "cna": {
      "providerMetadata": {
        "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "shortName": "GitHub_M",
        "dateUpdated": "2026-09-21T21:38:47.673Z"
      },
      "title": "Chartbrew: DNS Rebinding SSRF Bypass in Outbound Request Validation",
      "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'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."
        }
      ],
      "affected": [
        {
          "vendor": "chartbrew",
          "product": "chartbrew",
          "versions": [
            {
              "version": "< 5.2.2",
              "status": "affected"
            }
          ]
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "lang": "en",
              "description": "CWE-350: Reliance on Reverse DNS Resolution for a Security-Critical Action",
              "cweId": "CWE-350",
              "type": "CWE"
            }
          ]
        }
      ],
      "references": [
        {
          "url": "https://github.com/chartbrew/chartbrew/security/advisories/GHSA-9537-vm84-j26f",
          "name": "https://github.com/chartbrew/chartbrew/security/advisories/GHSA-9537-vm84-j26f",
          "tags": [
            "x_refsource_CONFIRM"
          ]
        },
        {
          "url": "https://github.com/chartbrew/chartbrew/commit/d38d745fe9e45563be8c33e4c7a17788ee6f13a3",
          "name": "https://github.com/chartbrew/chartbrew/commit/d38d745fe9e45563be8c33e4c7a17788ee6f13a3",
          "tags": [
            "x_refsource_MISC"
          ]
        },
        {
          "url": "https://github.com/chartbrew/chartbrew/releases/tag/v5.2.2",
          "name": "https://github.com/chartbrew/chartbrew/releases/tag/v5.2.2",
          "tags": [
            "x_refsource_MISC"
          ]
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "version": "3.1",
            "vectorString": "CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:N/A:N",
            "attackVector": "NETWORK",
            "attackComplexity": "HIGH",
            "privilegesRequired": "LOW",
            "userInteraction": "NONE",
            "scope": "CHANGED",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "NONE",
            "availabilityImpact": "NONE",
            "baseScore": 6.3,
            "baseSeverity": "MEDIUM"
          }
        }
      ]
    }
  }
}