CVE-2026-103488High· 7.1▾ TwilightIn JetBrains YouTrack before 2026.2.19422 missing authorisation allowed authenticated users to add themselves to project teams and access restricted issues
▾ Twilight zone — High severity, or a signal on a lesser flaw
impact 39.1 · likelihood 0 · exploitation 0
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In JetBrains YouTrack before 2026.2.19422 missing authorisation allowed authenticated users to add themselves to project teams and access restricted issues
Refer to the linked advisories for vendor-supplied fixes and affected version ranges.
Connected by shared product, vendor, weakness, or advisory.
CVE-2026-100277High· 8.9In JetBrains YouTrack before 2026.2.19197 account takeover was possible by replaying a notification signature
CVE-2026-100276Medium· 5.9In JetBrains YouTrack before 2026.2.19197 guest users could remove a workflow action's visibility restriction and run the action
CVE-2026-100278Medium· 4.9In JetBrains YouTrack before 2026.2.19197 users with restricted permission could edit and hide other users' comments
CVE-2026-100273High· 8.2In JetBrains YouTrack before 2026.2.19197 authorisation bypass in the scripts debugger allowed arbitrary code execution
CVE-2026-100262High· 7.6In JetBrains YouTrack before 2026.2.18991 missing authorisation allowed users with read-only project access to overwrite project notification templates
CVE-2026-100270Low· 3.3In JetBrains YouTrack before 2026.2.19197 low-level Admin Read permission users could disclose integration credentials via import configurations