{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "extracted_events": [
              {
                "introduced": "0"
              },
              {
                "fixed": "1.0.1"
              }
            ],
            "source": [
              "AFFECTED_FIELD",
              "DESCRIPTION",
              "REFERENCES"
            ]
          },
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "f50a25644c9c3893503cf0727ccf613c0ce1e748"
            }
          ],
          "repo": "https://github.com/thu-maic/openmaic",
          "type": "GIT"
        }
      ]
    }
  ],
  "aliases": [
    "GHSA-9m7h-vh2h-rc3w"
  ],
  "database_specific": {
    "cna_assigner": "VulnCheck",
    "cwe_ids": [
      "CWE-306",
      "CWE-918"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/86xxx/CVE-2026-86259.json"
  },
  "details": "OpenMAIC before 1.0.1 skips server-side request forgery validation in non-production builds, allowing unauthenticated attackers to reach cloud instance metadata services. Attackers can supply arbitrary provider URLs via the x-base-url header or baseUrl parameter to access sensitive cloud credentials and metadata.",
  "id": "CVE-2026-86259",
  "modified": "2026-09-08T03:30:45.927481946Z",
  "published": "2026-09-06T12:37:50.155Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/86xxx/CVE-2026-86259.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/THU-MAIC/OpenMAIC/security/advisories/GHSA-9m7h-vh2h-rc3w"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-86259"
    },
    {
      "type": "ADVISORY",
      "url": "https://www.vulncheck.com/advisories/openmaic-before-1.0.1-ssrf-via-environment-gated-url-validation"
    },
    {
      "type": "FIX",
      "url": "https://github.com/THU-MAIC/OpenMAIC/releases/tag/v1.0.1"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/THU-MAIC/OpenMAIC"
    },
    {
      "type": "ARTICLE",
      "url": "https://github.com/THU-MAIC/OpenMAIC/blob/v1.0.0/app/api/generate/image/route.ts#L73-L78"
    },
    {
      "type": "ARTICLE",
      "url": "https://github.com/THU-MAIC/OpenMAIC/blob/v1.0.0/middleware.ts#L60-L63"
    }
  ],
  "schema_version": "1.9.0",
  "severity": [
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:L/VA:N/SC:H/SI:N/SA:N",
      "type": "CVSS_V4"
    }
  ],
  "summary": "OpenMAIC before 1.0.1 SSRF via Environment-Gated URL Validation"
}