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High · 8.9 CVE-2026-100277 EUVD-2026-90021GHSA-mqhr-7f7q-h475

In JetBrains YouTrack before 2026.2.19197 account takeover was possible by replaying a notification signature

Published Sep 30, 2026 · Updated Oct 1, 2026 · Assigned by JetBrains