{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "extracted_events": [
              {
                "introduced": "8.3.0"
              },
              {
                "fixed": "17.2.4"
              },
              {
                "introduced": "17.3.0"
              },
              {
                "fixed": "17.3.2"
              }
            ],
            "source": "AFFECTED_FIELD"
          },
          "events": [
            {
              "introduced": "aa538d62bf5262c9cda886e9a942bc24aba78f00"
            },
            {
              "fixed": "d9a99f12d793e912a3de65c10e395016933c9378"
            },
            {
              "introduced": "0"
            },
            {
              "fixed": "cd0d46e68f91e27deeb1fd12511a646043612498"
            }
          ],
          "repo": "https://github.com/opf/openproject",
          "type": "GIT"
        }
      ]
    }
  ],
  "aliases": [
    "GHSA-r85r-gjq2-f83r"
  ],
  "database_specific": {
    "cna_assigner": "GitHub_M",
    "cwe_ids": [
      "CWE-1188",
      "CWE-1392",
      "CWE-502",
      "CWE-798"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/46xxx/CVE-2026-46386.json"
  },
  "details": "OpenProject is open-source, web-based project management software. Prior to , the official openproject/openproject Docker image ships ENV SECRET_KEY_BASE=OVERWRITE_ME as the default Rails master key. Combined with cookies_serializer = :marshal, this gives any logged-in user a deterministic Marshal-deserialization path reachable via the /my/two_factor_devices cookie reader This vulnerability is fixed in .",
  "id": "CVE-2026-46386",
  "modified": "2026-07-08T05:36:37.058626885Z",
  "published": "2026-06-26T19:26:39.961Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/46xxx/CVE-2026-46386.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/opf/openproject/security/advisories/GHSA-r85r-gjq2-f83r"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-46386"
    }
  ],
  "schema_version": "1.7.5",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "OpenProject: Pre-authentication RCE in openproject/openproject Docker image via default `SECRET_KEY_BASE=OVERWRITE_ME` and `cookies_serializer = :marshal`"
}