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)

EPSS: 0.001 (20.0th percentile) — read the EPSS interpretation.

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.

Affected products

Jetbrains Youtrack — versions 0

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

cve@jetbrains.com (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.