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.
Fix
Nothing published yet: no patch, vendor advisory or mitigation reference on NVD, no vendor advisory in the News for this CVE, not in CISA's KEV, no fixed package version. BaselineWatch does not guess at one.
Change history 2
- StatusReceived → DeferredNVD modified 2026-10-19 21:14
- First seenCVSS 5.3NVD modified 2026-10-19 16:17
Affected (CPE criteria) 0
NVD has not attached CPE configurations yet.
References 5
- https://github.com/4ian/GDevelop/blob/v5.6.284/newIDE/app/src/ProjectsStorage/LocalFileStorageProvider/LocalFileResourceMover.js
- https://github.com/4ian/GDevelop/blob/v5.6.284/newIDE/electron-app/app/LocalFileDownloader.js
- https://github.com/4ian/GDevelop/commit/fbb01f40a640c35c6064f827065eda00e5608690
- https://github.com/4ian/GDevelop/issues/9257
- https://www.vulncheck.com/advisories/gdevelop-through-5.6.284-cookie-leak-via-localfiledownloader-resource-urls