SOC status:Duty analyst on shift

UK Cyber Defence
VulnerabilityAnalyzed

CVE-2026-59791

In JetBrains YouTrack before 2026.2.17012 cSS injection via Mermaid diagram rendering was possible

LOW 3.5EPSS 0.23%

Does this matter?

Lower severity and a low EPSS score (0.23%). Track it; it rarely justifies an emergency change on its own.

Description

In JetBrains YouTrack before 2026.2.17012 cSS injection via Mermaid diagram rendering was possible

CVSS 3.1
3.5 LOWCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:L/A:N
EPSS
0.23% probability · 14th percentile
CISA KEV
Not listed
Weakness
CWE-1021
Affected
jetbrains/youtrack
Source
cve@jetbrains.com

Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.