Vulnerability in Jetbrains Youtrack

CVE-2026-86492

In JetBrains YouTrack before 2026.2.18634 a shared token cache allowed cross-tenant theft of GitHub App installation tokens

CVSS v3 metric

CVSS v3 base score 8.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:L/A:N.

Affected products

Jetbrains Youtrack

Weakness classification (CWE)

CWE-488

References

cve@jetbrains.com

Frequently asked questions

What is CVE-2026-86492?: CVE-2026-86492 is a high-severity vulnerability in Jetbrains Youtrack, classified under CWE-488. CVSS score: 8.5/10. Published 2026-09-07.
How severe is CVE-2026-86492?: High severity. CVSS v3 base score is 8.5 out of 10.