JetBrainsCVE-2026-86478
JetBrains YouTrack: improper authentication
Critical9.8CVE-2026-86478 · Published Sep 7, 2026 · updated Sep 9, 2026
In JetBrains YouTrack before 2025.3.161254, 2026.1.14042 improper authentication in YouTrack Helpdesk allowed unauthenticated account takeover via a self-asserted email address
Affected versions
| Package | Affected | Fixed in |
|---|---|---|
| YouTrack Product | < 2025.3.161254, 2026.1.14042 | 2025.3.161254, 2026.1.14042 |
Details and references
- CVSS 3.1
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- Severity from
- the vendor (its own CVE record or advisory)
- Weakness
- CWE-290
More JetBrains advisories
All JetBrains| Date | Advisory | Severity | Fixed in |
|---|---|---|---|
| Sep 7 | JetBrains IntelliJ IDEA: information disclosure | Low3.3 | 2026.2.2 |
| Sep 7 | JetBrains GoLand: missing authentication | Medium5.9 | 2026.2.2.1 |
| Sep 7 | JetBrains YouTrack: information disclosure | Medium6.8 | 2026.2.18769 |
| Sep 7 | JetBrains YouTrack: improper authorization | High7.7 | 2025.3.160480+1 more |
| Sep 7 | JetBrains YouTrack: missing authorization | Medium4.3 | 2026.1.14047 |
| Sep 7 | In JetBrains YouTrack before 2026.1.14047 a missing escalation check let a user... | Medium5.5 | 2026.1.14047 |