{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "extracted_events": [
              {
                "introduced": "0"
              },
              {
                "fixed": "5.5.0"
              }
            ],
            "source": [
              "AFFECTED_FIELD",
              "DESCRIPTION"
            ]
          },
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "94dc72bba68fdb6e981abca35bafd315a7e776eb"
            }
          ],
          "repo": "https://github.com/vrana/adminer",
          "type": "GIT"
        }
      ]
    }
  ],
  "aliases": [
    "GHSA-58cq-mgw2-38m5"
  ],
  "database_specific": {
    "cna_assigner": "VulnCheck",
    "cwe_ids": [
      "CWE-918"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/34xxx/CVE-2026-34964.json"
  },
  "details": "Adminer before 5.5.0 contains a server-side request forgery vulnerability in the login form's server field validator, which only inspects leading integers for privileged ports and fails to reject non-numeric port values. Attackers can inject PDO DSN keys like host= and port= into the server parameter to bypass the privileged-port restriction and establish TCP connections to arbitrary internal hosts and ports before authentication.",
  "id": "CVE-2026-34964",
  "modified": "2026-09-10T03:30:58.646325402Z",
  "published": "2026-08-25T01:29:58.396Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/34xxx/CVE-2026-34964.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/vrana/adminer/security/advisories/GHSA-58cq-mgw2-38m5"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-34964"
    },
    {
      "type": "ADVISORY",
      "url": "https://www.vulncheck.com/advisories/adminer-before-ssrf-via-pdo-dsn-injection"
    }
  ],
  "schema_version": "1.9.0",
  "severity": [
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:L/SI:N/SA:N",
      "type": "CVSS_V4"
    }
  ],
  "summary": "Adminer before 5.5.0 SSRF via PDO DSN Injection"
}