CVE-2026-103496

In JetBrains YouTrack before 2026.2.19422 iDOR in inbox threads allowed reading other users' notifications

• Published Oct 1, 2026
• CVSS 5.4 medium
• 0.1% chance of exploitation in the next 30 days (EPSS)
• A fix is available

CVE-2026-103496 at the National Vulnerability Database