{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "cpe": "cpe:2.3:a:koha:koha:*:*:*:*:*:*:*:*",
            "extracted_events": [
              {
                "introduced": "0"
              },
              {
                "last_affected": "25.11.00"
              }
            ],
            "source": "CPE_RANGE"
          },
          "events": [
            {
              "introduced": "0"
            },
            {
              "last_affected": "3f2987eb19f7ac1987591d8e9b01961c39405b39"
            }
          ],
          "repo": "https://github.com/koha-community/koha",
          "type": "GIT"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "mitre",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/26xxx/CVE-2026-26379.json"
  },
  "details": "Koha versions up to 25.11 contain a Server-Side Request Forgery (SSRF) vulnerability via the Z39.50/SRU server configuration. This allows authenticated attackers to perform internal network scanning and identify running services by analyzing server response times.",
  "id": "CVE-2026-26379",
  "modified": "2026-07-15T01:48:58.975125126Z",
  "published": "2026-06-03T00:00:00Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://g03m0n.github.io/"
    },
    {
      "type": "WEB",
      "url": "https://g03m0n.github.io/posts/cve-2026-26379/"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/26xxx/CVE-2026-26379.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-26379"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/Koha-Community/Koha"
    }
  ],
  "schema_version": "1.8.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N",
      "type": "CVSS_V3"
    }
  ]
}