CVE-2026-103493High· 8.1▾ TwilightIn JetBrains YouTrack before 2026.2.19422 stored XSS via Mermaid and LaTeX content was possible
▾ Twilight zone — High severity, or a signal on a lesser flaw
impact 44.6 · likelihood 0 · exploitation 0
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Stakeholder-Specific Vulnerability Categorization from CISA's ADP record at CVE.org: whether exploitation is observed, whether an attack can be automated, and how much of the system is at stake.
Exploit-prediction probability, daily snapshots since Oct 2.
Disclosure to exploitation, from the record and what we observed since indexing it.
Disclosed via NVD
0.2%
In JetBrains YouTrack before 2026.2.19422 stored XSS via Mermaid and LaTeX content was possible
youtrack < 2026.2.19422Upgrade past the affected range:
youtrack 2026.2.19422Connected by shared product, vendor, weakness, or advisory.
CVE-2026-103489Low· 2.0In JetBrains YouTrack before 2026.2.19422 hTML injection in VCS command failure notifications was possible
CVE-2026-100275Medium· 6.9In JetBrains YouTrack before 2026.2.19197 stored XSS in the workflow error notification toast was possible
CVE-2026-100263Medium· 4.7In JetBrains YouTrack before 2026.2.18991 stored HTML injection via the User-Agent header was possible
CVE-2026-86483Medium· 5.4In JetBrains YouTrack before 2026.2.18634 stored XSS via a custom field on Agile board cards was possible
CVE-2026-86484Medium· 4.6In JetBrains YouTrack before 2026.2.18634 angularJS template injection in assignee names led to stored XSS
CVE-2026-86491Low· 3.5In JetBrains YouTrack before 2026.2.18634 stored XSS was possible via project and organization icon uploads