What is CVE-2026-86486?

CVE-2026-86486 is a low-severity vulnerability in Jetbrains Youtrack, classified under Missing Authentication for Critical Function. CVSS score: 3.7/10. Published 2026-09-07.

How severe is CVE-2026-86486?

Low severity. CVSS v3 base score is 3.7 out of 10.

Auth bypass in Jetbrains Youtrack

CVE-2026-86486

In JetBrains YouTrack before 2026.2.18634 the generic VCS webhook handler failed open when its secret was blank

Vulnerability class: Broken Authentication

CVSS v3 metric

CVSS v3 base score 3.7 (Low). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N.

Affected products

Jetbrains Youtrack

Weakness classification (CWE)

CWE-306 — Missing Authentication for Critical Function

References

cve@jetbrains.com

Frequently asked questions

What is CVE-2026-86486?: CVE-2026-86486 is a low-severity vulnerability in Jetbrains Youtrack, classified under Missing Authentication for Critical Function. CVSS score: 3.7/10. Published 2026-09-07.
How severe is CVE-2026-86486?: Low severity. CVSS v3 base score is 3.7 out of 10.