CVE-2026-103491Medium· 6.5▾ SunlitIn JetBrains YouTrack before 2026.2.19422 iDOR in the issue activities API allowed reading restricted issues
▾ Sunlit zone — Low / medium · no exploitation signal
impact 35.8 · 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 iDOR in the issue activities API allowed reading restricted issues
youtrack < 2026.2.19422Upgrade past the affected range:
youtrack 2026.2.19422Connected by shared product, vendor, weakness, or advisory.
CVE-2026-103496Medium· 5.4In JetBrains YouTrack before 2026.2.19422 iDOR in inbox threads allowed reading other users' notifications
CVE-2026-100272Medium· 4.9In JetBrains YouTrack before 2026.2.19197 missing authorisation in the notification template preview allowed Project Administrators to read restricted issues
CVE-2026-100268High· 7.7In JetBrains YouTrack before 2026.2.19197 project administrators could read comments from other projects via notification templates
CVE-2026-86481Medium· 4.3In JetBrains YouTrack before 2026.2.18634 signed URL reuse allowed disclosure of restricted project icons
CVE-2026-86488Medium· 6.5In JetBrains YouTrack before 2026.2.18634 iDOR via the watchRules and issueListConfig endpoints exposed private saved searches
CVE-2026-86489Medium· 6.5In JetBrains YouTrack before 2026.2.18634 an IDOR in the user profile API disclosed private issues and starred folders across organizations