by Kastro
Paper/Archive/CVE-2026-100277

CVE-2026-100277

JetBrains YouTrack — In JetBrains YouTrack before 2026.2.19197 account takeover was possible by replaying a notification signature

EPSS 0.3%CVSS 9.8
critical.is priorityof 100
34
CVSS 9.8 (NVD)9.8 / 10 × 3029.4Not in CISA KEV+300.0EPSS percentile 21.4.214 × 204.3No public exploit+100.0SSVC exploitation: none+100.0
Description · from the CVE record

In JetBrains YouTrack before 2026.2.19197 account takeover was possible by replaying a notification signature

Affected

ProductAffectedFixed inSource
YouTrack< 2026.2.191972026.2.19197CNA

Scores by source

NVD9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
JetBrains (CNA)8.9CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:L
CISA ADPSSVCExploitation: none · Automatable: no · Technical impact: total

References

refjetbrains.com/privacy-security/issues-fixed