{"id":"CVE-2026-112303","aliases":["EUVD-2026-104395","GHSA-rq3j-g73v-g6hv"],"status":"published","title":"GDevelop through 5.6.284 Cookie Leak via LocalFileDownloader Resource URLs","description":"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.","severity":{"version":"4.0","score":5.3,"vector":"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","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-11","score":0.0026,"percentile":0.17815,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-522"],"published":"2026-10-19T15:28:54Z","modified":"2026-10-28T02:30:38Z","products":[{"vendor":"gdevelop","product":"gdevelop"}],"references":[{"url":"https://github.com/4ian/GDevelop/issues/9257","tags":["issue-tracking","report"]},{"url":"https://github.com/4ian/GDevelop/commit/fbb01f40a640c35c6064f827065eda00e5608690","tags":["patch","fix"]},{"url":"https://github.com/4ian/GDevelop/blob/v5.6.284/newIDE/electron-app/app/LocalFileDownloader.js","tags":["technical-description","article"]},{"url":"https://github.com/4ian/GDevelop/blob/v5.6.284/newIDE/app/src/ProjectsStorage/LocalFileStorageProvider/LocalFileResourceMover.js","tags":["technical-description","article"]},{"url":"https://www.vulncheck.com/advisories/gdevelop-through-5.6.284-cookie-leak-via-localfiledownloader-resource-urls","tags":["third-party-advisory","advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-112303","tags":["advisory"]},{"url":"https://github.com/advisories/GHSA-rq3j-g73v-g6hv"},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/112xxx/CVE-2026-112303.json","tags":["advisory"]},{"url":"https://github.com/4ian/GDevelop","tags":["package"]}],"sources":{"cve":[{"id":"CVE-2026-112303","title":"GDevelop through 5.6.284 Cookie Leak via LocalFileDownloader Resource URLs","description":"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.","status":"published","published":"2026-10-19T15:28:54.002Z","modified":"2026-10-19T18:22:14.926Z","cvss":[{"version":"4.0","score":5.3,"vector":"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","level":"medium","assessor":"cna"},{"version":"3.1","score":4.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N","level":"medium","assessor":"cna"}],"cwes":["CWE-522"],"updated_at":"2026-11-02T13:44:51.734189Z"}],"euvd":[{"id":"EUVD-2026-104395","description":"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.","status":"published","published":"2026-10-19T15:28:54Z","modified":"2026-10-19T18:22:14Z","cvss":[{"version":"4.0","score":5.3,"vector":"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","level":"medium"}],"updated_at":"2026-11-02T16:59:50.094994Z"}],"ghsa":[{"id":"GHSA-rq3j-g73v-g6hv","title":"GDevelop desktop app through 5.6.284 contains a credential leak vulnerability that allows...","description":"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.","status":"published","published":"2026-10-19T18:32:12Z","modified":"2026-10-19T18:32:16Z","cvss":[{"version":"4.0","score":5.3,"vector":"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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","level":"medium"},{"version":"3.1","score":4.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N","level":"medium"}],"cwes":["CWE-522"],"updated_at":"2026-11-02T15:13:57.629988Z"}],"nvd":[{"id":"CVE-2026-112303","description":"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.","status":"published","published":"2026-10-19T16:17:06.107Z","modified":"2026-10-19T21:14:14.15Z","cvss":[{"version":"4.0","score":5.3,"vector":"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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","level":"medium","assessor":"secondary"},{"version":"3.1","score":4.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N","level":"medium","assessor":"secondary"}],"cwes":["CWE-522"],"updated_at":"2026-11-02T14:13:00.83844Z"}],"osv":[{"id":"CVE-2026-112303","title":"GDevelop through 5.6.284 Cookie Leak via LocalFileDownloader Resource URLs","description":"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.","status":"published","published":"2026-10-19T15:28:54.002Z","modified":"2026-10-28T02:30:38.334673596Z","cvss":[{"version":"4.0","score":5.3,"vector":"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","level":"medium"}],"cwes":["CWE-522"],"updated_at":"2026-11-02T15:44:55.938017Z"}]}}