CVE-2026-112303
CVE-2026-112303 · GDevelop through 5.6.284 Cookie Leak via LocalFileDownloader Resource URLs
This page contains facts from public vulnerability sources. Check the original advisory before updating.
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.
CVSS 5.3 · Medium · EPSS 0.3%
- Published
- Updated
Affected products and versions
gdevelop
- Versions
- ≥ 0, ≤ 5.6.284: Affected (custom)
No fix published
Original sources
- https://github.com/4ian/GDevelop/issues/9257
- https://github.com/4ian/GDevelop/commit/fbb01f40a640c35c6064f827065eda00e5608690
- https://github.com/4ian/GDevelop/blob/v5.6.284/newIDE/electron-app/app/LocalFileDownloader.js
- https://github.com/4ian/GDevelop/blob/v5.6.284/newIDE/app/src/ProjectsStorage/LocalFileStorageProvider/LocalFileResourceMover.js
- https://www.vulncheck.com/advisories/gdevelop-through-5.6.284-cookie-leak-via-localfiledownloader-resource-urls
- https://nvd.nist.gov/vuln/detail/CVE-2026-112303