Vulnerability in Jetbrains Hub

CVE-2026-123298

In JetBrains Hub before 2026.2.52556 sMTP command injection via email verification was possible

Vulnerability class: CRLF Injection

Published 2026-11-06 · last modified 2026-11-07.

CVSS v3 metric

CVSS v3 base score 5.0 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/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 Hub

Weakness classification (CWE)

CWE-93 — CRLF Injection

References

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

Frequently asked questions

What is CVE-2026-123298?: CVE-2026-123298 is a medium-severity vulnerability in Jetbrains Hub, classified under CRLF Injection. CVSS score: 5.0/10. Published 2026-11-06.
How severe is CVE-2026-123298?: Medium severity. CVSS v3 base score is 5.0 out of 10.