CVE-2026-59791

LOW

Jetbrains YouTrack < 2026.2.17012 - Improper Restriction of Rendered UI Layers or Frames

Title source: rule
STIX 2.1

Description

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

References (1)

Core 1

Scores

CVSS v3 3.5
EPSS 0.0014
EPSS Percentile 3.3%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:L/A:N

CISA SSVC

Vulnrichment
Exploitation none
Automatable no
Technical Impact partial

Details

CWE
CWE-1021
Status published
Products (2)
JetBrains/YouTrack < 2026.2.17012
jetbrains/youtrack < 2026.2.17012
Published Jul 10, 2026
Tracked Since Jul 10, 2026