[ CVE-2026-112303 · Published 19 Oct 2026 ]
Vulnerability in GDevelop
CVSS 4.3
EPSS <1%No fix listed yet
[ Description ]Official 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.
[ Fixes ]Fixes and patches
No fix or interim patch is linked from our sources yet. Check the vendor references below and limit exposure of affected systems until a fix is available.
[ References ]References
- github.com/4ian/GDevelop/blob/v5.6.284/newIDE/app/src/ProjectsStorage/LocalFileStorageP…
- github.com/4ian/GDevelop/blob/v5.6.284/newIDE/electron-app/app/LocalFileDownloader.js
- github.com/4ian/GDevelop/commit/fbb01f40a640c35c6064f827065eda00e5608690
- github.com/4ian/GDevelop/issues/9257
- www.vulncheck.com/advisories/gdevelop-through-5.6.284-cookie-leak-via-localfiledownload…