What is CVE-2026-86479?

CVE-2026-86479 is a high-severity vulnerability in Jetbrains Youtrack, classified under Missing Authorization. CVSS score: 8.1/10. Published 2026-09-07.

How severe is CVE-2026-86479?

High severity. CVSS v3 base score is 8.1 out of 10.

Auth bypass in Jetbrains Youtrack

CVE-2026-86479

In JetBrains YouTrack before 2026.2.18788, 2026.1.14055, 2025.3.161254 missing authorisation allowed access to restricted REST API resources via IDOR

Vulnerability class: Broken Access Control

CVSS v3 metric

CVSS v3 base score 8.1 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N.

Affected products

Jetbrains Youtrack

Weakness classification (CWE)

CWE-862 — Missing Authorization

References

cve@jetbrains.com

Frequently asked questions

What is CVE-2026-86479?: CVE-2026-86479 is a high-severity vulnerability in Jetbrains Youtrack, classified under Missing Authorization. CVSS score: 8.1/10. Published 2026-09-07.
How severe is CVE-2026-86479?: High severity. CVSS v3 base score is 8.1 out of 10.