{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "extracted_events": [
              {
                "introduced": "2026.1.0-latest"
              },
              {
                "fixed": "2026.1.5"
              },
              {
                "introduced": "2026.4.0-latest"
              },
              {
                "fixed": "2026.4.2"
              },
              {
                "introduced": "2026.5.0-latest"
              },
              {
                "fixed": "2026.5.1"
              }
            ],
            "source": [
              "AFFECTED_FIELD",
              "REFERENCES"
            ]
          },
          "events": [
            {
              "introduced": "322d3c0ac6a8f133b3f82875e9dbbe310f638c1b"
            },
            {
              "introduced": "fdd750d960e603415db62242eca3c30d68e366db"
            },
            {
              "introduced": "640840d818f4ee9375829ece0ef452923bb0c012"
            },
            {
              "fixed": "c06899647d758493d95a5b301e573ffa3db1e878"
            },
            {
              "fixed": "4bbdddfc6700ca23604242111d4fa0e00347af97"
            },
            {
              "fixed": "598586ccf2e046a25d4b54132e4e1feb47f24e98"
            },
            {
              "fixed": "1f1ded8dd361d81786bff17b35e1138d6ee299c0"
            },
            {
              "fixed": "7ddde266617b452152c1bf5f903f6c07be38fc40"
            },
            {
              "fixed": "a53df26dcf7e50ce2b20bfd5454a0c9d44b8fc7d"
            },
            {
              "fixed": "abaa664c5df84026efb2ca264ba0f5586c3f2b01"
            },
            {
              "fixed": "06d03da34c4ed09ea59f917f045ba250d2b6320d"
            }
          ],
          "repo": "https://github.com/discourse/discourse",
          "type": "GIT"
        }
      ]
    }
  ],
  "aliases": [
    "GHSA-3mvf-q9rg-w6m7"
  ],
  "database_specific": {
    "cna_assigner": "GitHub_M",
    "cwe_ids": [
      "CWE-862"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/46xxx/CVE-2026-46413.json"
  },
  "details": "Discourse is an open-source discussion platform. Prior to 2026.6.0, 2026.5.1, 2026.4.2, and 2026.1.5, regular users could route direct S3 multipart uploads through ExternalUploadManager into the admin backup store. This issue is fixed in versions 2026.6.0, 2026.5.1, 2026.4.2, and 2026.1.5.",
  "id": "CVE-2026-46413",
  "modified": "2026-07-15T01:49:18.899169604Z",
  "published": "2026-07-09T21:55:45.096Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/discourse/discourse/releases/tag/v2026.1.5"
    },
    {
      "type": "WEB",
      "url": "https://github.com/discourse/discourse/releases/tag/v2026.4.2"
    },
    {
      "type": "WEB",
      "url": "https://github.com/discourse/discourse/releases/tag/v2026.5.1"
    },
    {
      "type": "WEB",
      "url": "https://github.com/discourse/discourse/releases/tag/v2026.6.0"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/46xxx/CVE-2026-46413.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/discourse/discourse/security/advisories/GHSA-3mvf-q9rg-w6m7"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-46413"
    },
    {
      "type": "FIX",
      "url": "https://github.com/discourse/discourse/commit/1f1ded8dd361d81786bff17b35e1138d6ee299c0"
    },
    {
      "type": "FIX",
      "url": "https://github.com/discourse/discourse/commit/7ddde266617b452152c1bf5f903f6c07be38fc40"
    },
    {
      "type": "FIX",
      "url": "https://github.com/discourse/discourse/commit/a53df26dcf7e50ce2b20bfd5454a0c9d44b8fc7d"
    },
    {
      "type": "FIX",
      "url": "https://github.com/discourse/discourse/commit/abaa664c5df84026efb2ca264ba0f5586c3f2b01"
    }
  ],
  "schema_version": "1.8.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Discourse: Regular users can route multipart uploads into the admin backup store"
}