XML External Entity injection in IntelliJ IDEA - CVE-2026-49383
Published: August 17, 2026
Vulnerability identifier: #VU143811
CSH Severity: Low
CVSS v4: 4.6 [CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-49383
CWE-ID: CWE-611
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a local user to disclose sensitive information.
The vulnerability exists due to XML external entity processing in UI Designer form parser when parsing a crafted form file. A local user can supply a specially crafted form file to disclose sensitive information.
Affected software
IntelliJ IDEA
How to mitigate CVE-2026-49383
Install security update from vendor's website.
IntelliJ IDEA - update to 2026.1