CVE-2026-100277
In JetBrains YouTrack before 2026.2.19197 account takeover was possible by replaying a notification signature
In JetBrains YouTrack before 2026.2.19197 account takeover was possible by replaying a notification signature
- Vendor
- jetbrains
- Product
- youtrack
- CVSS 3.1
- 9.8 (critical), scored by NVD (primary)CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- CVSS 3.1
- 8.9 (high), scored by cve@jetbrains.comCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:L
- CWE
- CWE-863
- Published
- 2026-09-30
- NVD modified
- 2026-10-02
- NVD status
- Analyzed
Not in the CISA KEV catalogue at the last update.
EPSS
0.28% chance of exploitation in the next 30 days (percentile 19th)
FIRST EPSS, updated 17 Oct 2026. About EPSS
CVSS is severity, EPSS is likelihood, KEV means already exploited. EPSS is a statistical probability, not a certainty: a low score does not make a bug safe, and a high one does not prove it is being exploited.
References
- www.jetbrains.com (Vendor Advisory)
Data last updated 18 Oct 2026. Sources: NVD API 2.0, FIRST EPSS. Links: NVD, CISA KEV. Metadata only. ThreatWire does not host exploit code.