{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "source": "REFERENCES"
          },
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "cbb53cf4a41f068a70902217473d7e2fe5d6c6ad"
            }
          ],
          "repo": "https://github.com/adoptium/adoptium.net",
          "type": "GIT"
        }
      ]
    }
  ],
  "aliases": [
    "GHSA-f228-m952-5r6w"
  ],
  "database_specific": {
    "cna_assigner": "eclipse",
    "cwe_ids": [
      "CWE-494",
      "CWE-601"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/93xxx/CVE-2026-93649.json",
    "unresolved_ranges": [
      {
        "extracted_events": [
          {
            "fixed": "1f9753c"
          }
        ],
        "source": "AFFECTED_FIELD"
      }
    ]
  },
  "details": "In the Eclipse Adoptium website (adoptium.net), in every deployment built from commit 0b24ea1 (2025-06-18) up to the fix in commit cbb53cf (2026-09-24), the post-download page /[locale]/download takes a download URL from the \"link\" query parameter and automatically navigates to it with a meta http-equiv=\"refresh\". The URL is checked against a list of trusted prefixes using String.startsWith() on the raw string, while the browser applies RFC 3986 dot-segment normalisation before navigating, so a value such as https://github.com/adoptium/temurin/../../attacker/malware/releases/download/v1/jdk.exe passes the check but resolves to an attacker-controlled repository. A victim who follows a crafted adoptium.net link is shown the genuine \"Thank you for downloading Eclipse Temurin\" page while their browser downloads a binary of the attacker's choosing",
  "id": "CVE-2026-93649",
  "modified": "2026-10-17T10:31:05.012219847Z",
  "published": "2026-10-15T13:28:42.590Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://gitlab.eclipse.org/security/cve-assignment/-/work_items/313"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/93xxx/CVE-2026-93649.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/adoptium/adoptium.net/security/advisories/GHSA-f228-m952-5r6w#event-1046947"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-93649"
    },
    {
      "type": "FIX",
      "url": "https://github.com/adoptium/adoptium.net/commit/cbb53cf4a41f068a70902217473d7e2fe5d6c6ad"
    }
  ],
  "schema_version": "1.9.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N",
      "type": "CVSS_V3"
    }
  ]
}