CVE-2026-112303 json
GDevelop through 5.6.284 Cookie Leak via LocalFileDownloader Resource URLs
published 2026-10-19 21 d ago modified 2026-10-19 20 d ago also EUVD-2026-104395
- cvss
- 4.3
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.3%
- EPSS 0.3% chance of exploitation in 30 days, percentile 17%
- public exploits
- 0
- none known
Summary
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.
Patch / fix
CISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- partial
- Assessed
- 20 d ago
Exploit prediction
0.26% chance of exploitation in the next 30 days, higher than 17% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 4.0 | 5.3 | CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N |
| CNA | 3.1 | 4.3 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N |
| CNA | 4.0 | 5.3 | CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X |
Affected products
- GDevelop GDevelop
Classification
- Weakness
-
- CWE-522 Insufficiently Protected Credentials
References
-
github.com
/4ian/GDevelop/commit/fbb01f40a640c35c6064f827065eda00e5608690
patch
-
github.com
/4ian/GDevelop/issues/9257
issue-tracking
-
github.com
/4ian/GDevelop/blob/v5.6.284/newIDE/electron-app/app/LocalFileDownloader.js
technical-description
-
github.com
/4ian/GDevelop/blob/v5.6.284/newIDE/app/src/ProjectsStorage/LocalFileStorageProvider/LocalFileResourceMover.js
technical-description
-
vulncheck.com
/advisories/gdevelop-through-5.6.284-cookie-leak-via-localfiledownloader-resource-urls
third-party-advisory
Sources
- CVE List CVE-2026-112303
- NVD CVE-2026-112303
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.