What is CVE-2026-100280?

CVE-2026-100280 is a low-severity vulnerability in Jetbrains Youtrack, classified under Missing Authorization. CVSS score: 3.1/10. Published 2026-09-30.

How severe is CVE-2026-100280?

Low severity. CVSS v3 base score is 3.1 out of 10.

Auth bypass in Jetbrains Youtrack

CVE-2026-100280

In JetBrains YouTrack before 2026.2.19197 creating a project from an unreadable custom template was possible

Vulnerability class: Broken Access Control

Published 2026-09-30 · last modified 2026-09-30.

CVSS v3 metric

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

Weakness classification (CWE)

CWE-862 — Missing Authorization

References

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

Frequently asked questions

What is CVE-2026-100280?: CVE-2026-100280 is a low-severity vulnerability in Jetbrains Youtrack, classified under Missing Authorization. CVSS score: 3.1/10. Published 2026-09-30.
How severe is CVE-2026-100280?: Low severity. CVSS v3 base score is 3.1 out of 10.