CVE-2026-112303

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 v3 4.3 MEDIUM

4.3^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 2.8 / Impact : 1.4

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction REQUIRED

Confidentiality Impact LOW

Integrity Impact NONE

Availability Impact NONE

Scope UNCHANGED

References

Link	Resource
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

Configurations

No configuration.

History

19 Oct 2026, 16:17

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-10-19 16:17

Updated : 2026-10-19 21:14

NVD link : CVE-2026-112303

Mitre link : CVE-2026-112303

CVE.ORG link : CVE-2026-112303

JSON object : View

Products Affected

No product.

CWE

CWE-522

Insufficiently Protected Credentials

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