Vulnerabilities

In JetBrains YouTrack before 2026.2.18634 cloning a whiteboard allowed unauthorized changes to links on inaccessible issues

In JetBrains YouTrack before 2026.2.18634 improper permission checks allowed read-only users to create and modify whiteboard cards

In JetBrains YouTrack before 2026.2.18634 a shared token cache allowed cross-tenant theft of GitHub App installation tokens

In JetBrains YouTrack before 2026.2.18634 stored XSS was possible via project and organization icon uploads

In JetBrains YouTrack before 2026.2.18634 improper permission checks allowed overwriting of bundled apps via the app import endpoint

In JetBrains YouTrack before 2026.2.18634 an IDOR in the user profile API disclosed private issues and starred folders across organizations

In JetBrains YouTrack before 2026.2.18634 iDOR via the watchRules and issueListConfig endpoints exposed private saved searches

In JetBrains YouTrack before 2026.2.18634 a crafted WebSocket message allowed read-only whiteboard users to modify canvas content

In JetBrains YouTrack before 2026.2.18634 the generic VCS webhook handler failed open when its secret was blank

In JetBrains YouTrack before 2026.2.18634 iP spoofing via HTTP headers allowed forged Bitbucket webhooks

In JetBrains YouTrack before 2026.2.18634 angularJS template injection in assignee names led to stored XSS

In JetBrains YouTrack before 2026.2.18634 stored XSS via a custom field on Agile board cards was possible

In JetBrains YouTrack before 2026.2.18634, insufficient validation of role assignments allowed privilege escalation

In JetBrains YouTrack before 2026.2.18634 signed URL reuse allowed disclosure of restricted project icons