Server-Side Request Forgery (SSRF) in IntelliJ IDEA - CVE-2026-86503
Published: September 7, 2026
Vulnerability identifier: #VU147334
CSH Severity: Low
CVSS v4: 0 [CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:N/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-86503
CWE-ID: CWE-918
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to cause server-side request forgery.
The vulnerability exists due to improper restriction of URL fetching in Kubernetes spec-source URL fetching when opening an untrusted project. A remote attacker can trick a victim into opening an untrusted project to cause server-side request forgery.
Affected software
IntelliJ IDEA
How to mitigate CVE-2026-86503
Install security update from vendor's website.
IntelliJ IDEA - update to 2026.2.2