What is CVE-2026-49368?

CVE-2026-49368 is a high-severity vulnerability in Jetbrains Youtrack, classified under Cross-site Scripting. CVSS score: 8.7/10. Published 2026-05-29.

How severe is CVE-2026-49368?

High severity. CVSS v3 base score is 8.7 out of 10.

XSS in Jetbrains Youtrack

CVE-2026-49368

In JetBrains YouTrack before 2026.1.13162 stored XSS in project notification templates was possible

Vulnerability class: XSS (Cross-Site Scripting)

Published 2026-05-29 · last modified 2026-07-22.

CVSS v3 metric

CVSS v3 base score 8.7 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:N.

EPSS exploit prediction

EPSS: 0.003 (18.7th percentile), scored 2026-10-23.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 19th percentile — 18.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.002 · newest: 0.003 · change: +0.001

Affected products

Jetbrains Youtrack — versions 0

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

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

Frequently asked questions

What is CVE-2026-49368?: CVE-2026-49368 is a high-severity vulnerability in Jetbrains Youtrack, classified under Cross-site Scripting. CVSS score: 8.7/10. Published 2026-05-29.
How severe is CVE-2026-49368?: High severity. CVSS v3 base score is 8.7 out of 10.