{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "extracted_events": [
              {
                "range": [
                  {
                    "introduced": "0"
                  },
                  {
                    "last_affected": "5.6.284"
                  }
                ],
                "source": "AFFECTED_FIELD",
                "strategy": "StandardRange"
              },
              {
                "range": [
                  {
                    "fixed": "fbb01f40a640c35c6064f827065eda00e5608690"
                  }
                ],
                "source": "REFERENCES_COMMIT"
              }
            ]
          },
          "events": [
            {
              "introduced": "0"
            },
            {
              "last_affected": "3fb59a81a4e6320bc50828e23a16dcd3d8485f59"
            },
            {
              "fixed": "fbb01f40a640c35c6064f827065eda00e5608690"
            }
          ],
          "repo": "https://github.com/4ian/gdevelop",
          "type": "GIT"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "VulnCheck",
    "cwe_ids": [
      "CWE-522"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/112xxx/CVE-2026-112303.json"
  },
  "details": "GDevelop desktop app through 5.6.284 contains a credential leak vulnerability that allows attackers to steal the gd_resource cookie by supplying attacker-controlled resource URLs in project files. Attackers can get victims to open a crafted project, causing downloadLocalFile() to send the cookie to their server and expose private cloud project resources.",
  "id": "CVE-2026-112303",
  "modified": "2026-10-21T02:31:03.356715569Z",
  "published": "2026-10-19T15:28:54.002Z",
  "references": [
    {
      "type": "PACKAGE",
      "url": "https://github.com/4ian/GDevelop"
    },
    {
      "type": "ARTICLE",
      "url": "https://github.com/4ian/GDevelop/blob/v5.6.284/newIDE/app/src/ProjectsStorage/LocalFileStorageProvider/LocalFileResourceMover.js"
    },
    {
      "type": "ARTICLE",
      "url": "https://github.com/4ian/GDevelop/blob/v5.6.284/newIDE/electron-app/app/LocalFileDownloader.js"
    },
    {
      "type": "FIX",
      "url": "https://github.com/4ian/GDevelop/commit/fbb01f40a640c35c6064f827065eda00e5608690"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/4ian/GDevelop/issues/9257"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/112xxx/CVE-2026-112303.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-112303"
    },
    {
      "type": "ADVISORY",
      "url": "https://www.vulncheck.com/advisories/gdevelop-through-5.6.284-cookie-leak-via-localfiledownloader-resource-urls"
    }
  ],
  "schema_version": "1.9.0",
  "severity": [
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N",
      "type": "CVSS_V4"
    }
  ],
  "summary": "GDevelop through 5.6.284 Cookie Leak via LocalFileDownloader Resource URLs"
}