Auth bypass in Jetbrains Hub

CVE-2026-123300

In JetBrains Hub before 2026.2.52519 missing authorisation allowed users with read-only access to modify auth module group mappings

Vulnerability class: Broken Access Control

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

CVSS v3 metric

CVSS v3 base score 2.7 (Low). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/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-862 — Missing Authorization

References

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

Frequently asked questions

What is CVE-2026-123300?: CVE-2026-123300 is a low-severity vulnerability in Jetbrains Hub, classified under Missing Authorization. CVSS score: 2.7/10. Published 2026-11-06.
How severe is CVE-2026-123300?: Low severity. CVSS v3 base score is 2.7 out of 10.