What is CVE-2026-123310?

CVE-2026-123310 is a medium-severity vulnerability in Jetbrains Intellij Idea, classified under Server-Side Request Forgery (SSRF). CVSS score: 5.4/10. Published 2026-11-06.

How severe is CVE-2026-123310?

Medium severity. CVSS v3 base score is 5.4 out of 10.

SSRF in Jetbrains Intellij Idea

CVE-2026-123310

In JetBrains IntelliJ IDEA before 2026.3 kotlin scripts could trigger dependency downloads from arbitrary repositories in untrusted projects

Vulnerability class: SSRF (Server-Side Request Forgery)

Published 2026-11-06 · last modified 2026-11-06.

CVSS v3 metric

CVSS v3 base score 5.4 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N.

EPSS exploit prediction

No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.

Affected products

Jetbrains Intellij Idea

Weakness classification (CWE)

CWE-918 — Server-Side Request Forgery (SSRF)

References

www.jetbrains.com/privacy-security/issues-fixed/

Frequently asked questions

What is CVE-2026-123310?: CVE-2026-123310 is a medium-severity vulnerability in Jetbrains Intellij Idea, classified under Server-Side Request Forgery (SSRF). CVSS score: 5.4/10. Published 2026-11-06.
How severe is CVE-2026-123310?: Medium severity. CVSS v3 base score is 5.4 out of 10.