- Critical 9.8
CVE-2026-100277
In JetBrains YouTrack before 2026.2.19197 account takeover was possible by replaying a notification signature
Scores
The facts
- Published
- 30 September 2026
- Last changed
- 2 October 2026
- NVD status
- Analyzed
- Severity
- Critical, CVSS 9.8 out of 10 (version 3.1)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - Weakness
- Affects
- jetbrains youtrack
- Known exploited
- Not in the CISA Known Exploited Vulnerabilities catalogue in this build.
- EPSS
- 0.3% chance of exploitation activity in the next 30 days (percentile 19).
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