{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "extracted_events": [
              {
                "introduced": "0"
              },
              {
                "fixed": "1.121.0"
              }
            ],
            "source": "AFFECTED_FIELD"
          },
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "f5fc438c9a237847964aa561b5a593aa622f91df"
            }
          ],
          "repo": "https://github.com/opencost/opencost",
          "type": "GIT"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "VulnCheck",
    "cwe_ids": [
      "CWE-306"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/67xxx/CVE-2026-67349.json"
  },
  "details": "OpenCost before 1.121.0 fails to authenticate the GET /helmValues endpoint, exposing base64-decoded HELM_VALUES environment variable containing cloud provider credentials. Additionally, adminAuthMiddleware fails open when ADMIN_TOKEN is unset, allowing unauthenticated attackers to modify GCP service account keys via POST /serviceKey to redirect billing calls.",
  "id": "CVE-2026-67349",
  "modified": "2026-08-04T11:31:20.192506022Z",
  "published": "2026-07-30T14:40:47.996Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/67xxx/CVE-2026-67349.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/opencost/opencost/releases/tag/core/v1.121.0"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-67349"
    },
    {
      "type": "ADVISORY",
      "url": "https://www.vulncheck.com/advisories/opencost-unauthenticated-helm-values-exposure-and-admin-bypass"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/opencost/opencost/issues/3893"
    },
    {
      "type": "FIX",
      "url": "https://github.com/opencost/opencost/commit/a49a25bc2e0d6e220a131a4dc58f38ebe6ae851b"
    },
    {
      "type": "FIX",
      "url": "https://github.com/opencost/opencost/pull/3910"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/opencost/opencost"
    }
  ],
  "schema_version": "1.8.0",
  "severity": [
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N",
      "type": "CVSS_V4"
    }
  ],
  "summary": "OpenCost \u003c 1.121.0 Unauthenticated Helm Values Exposure and Admin Bypass"
}