Is CVE-2026-86489 being exploited?

No public exploit is currently tracked.

How severe is CVE-2026-86489?

CVE-2026-86489 has a CVSS v3 severity of MEDIUM (6.5).

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Description

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