Medium severity4.3NVD Advisory· Published Oct 19, 2026
CVE-2026-112303
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.
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Affected products
1Patches
Vulnerability mechanics
References
5- github.com/4ian/GDevelop/blob/v5.6.284/newIDE/app/src/ProjectsStorage/LocalFileStorageProvider/LocalFileResourceMover.jsnvd
- github.com/4ian/GDevelop/blob/v5.6.284/newIDE/electron-app/app/LocalFileDownloader.jsnvd
- github.com/4ian/GDevelop/commit/fbb01f40a640c35c6064f827065eda00e5608690nvd
- github.com/4ian/GDevelop/issues/9257nvd
- www.vulncheck.com/advisories/gdevelop-through-5.6.284-cookie-leak-via-localfiledownloader-resource-urlsnvd
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