What is CVE-2026-57923?

CVE-2026-57923 is a medium-severity vulnerability in Jetbrains Youtrack, classified under Missing Authorization. CVSS score: 5.3/10. Published 2026-06-26.

How severe is CVE-2026-57923?

Medium severity. CVSS v3 base score is 5.3 out of 10.

Auth bypass in Jetbrains Youtrack

CVE-2026-57923

In JetBrains YouTrack before 2026.2.16593 improper authorisation in the app configurations endpoint allowed modifying project settings

Vulnerability class: Broken Access Control

Published 2026-06-26 · last modified 2026-06-27.

CVSS v3 metric

CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:H/A:N.

EPSS exploit prediction

EPSS: 0.003 (16.7th percentile), scored 2026-09-30.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 17th percentile — 16.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.003 · newest: 0.003 · change: 0.000

Affected products

Jetbrains Youtrack — versions 0

Weakness classification (CWE)

CWE-862 — Missing Authorization

References

www.jetbrains.com/privacy-security/issues-fixed/ (Vendor Advisory)

Frequently asked questions

What is CVE-2026-57923?: CVE-2026-57923 is a medium-severity vulnerability in Jetbrains Youtrack, classified under Missing Authorization. CVSS score: 5.3/10. Published 2026-06-26.
How severe is CVE-2026-57923?: Medium severity. CVSS v3 base score is 5.3 out of 10.