What is CVE-2026-75048?

CVE-2026-75048 is a high-severity vulnerability in Jetbrains Youtrack, classified under Cross-site Scripting. CVSS score: 8.2/10. Published 2026-08-17.

How severe is CVE-2026-75048?

High severity. CVSS v3 base score is 8.2 out of 10.

XSS in Jetbrains Youtrack

CVE-2026-75048

In JetBrains YouTrack before 2026.2.18068 stored XSS via the fenced code-block language label was possible

Vulnerability class: XSS (Cross-Site Scripting)

CVSS v3 metric

CVSS v3 base score 8.2 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:L/A:N.

Affected products

Jetbrains Youtrack — versions 0

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

cve@jetbrains.com

Frequently asked questions

What is CVE-2026-75048?: CVE-2026-75048 is a high-severity vulnerability in Jetbrains Youtrack, classified under Cross-site Scripting. CVSS score: 8.2/10. Published 2026-08-17.
How severe is CVE-2026-75048?: High severity. CVSS v3 base score is 8.2 out of 10.