CVE-2026-100277

Account Takeover via Replay of Notification Signature in JetBrains YouTrack

Published Sep 30, 2026 CVSS 3.1 · 8.9 High EPSS < 1% KEV · Not listed
Description
In JetBrains YouTrack before 2026.2.19197 account takeover was possible by replaying a notification signature

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
CPEs cpe:2.3:a:jetbrains:youtrack:*:*:*:*:*:*:*:*
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}

Type Values Removed Values Added
First Time appeared Jetbrains
Jetbrains youtrack
Vendors & Products Jetbrains
Jetbrains youtrack
Type Values Removed Values Added
Title Account Takeover via Replay of Notification Signature in JetBrains YouTrack
Type Values Removed Values Added
Description In JetBrains YouTrack before 2026.2.19197 account takeover was possible by replaying a notification signature
Weaknesses CWE-863
References
Metrics cvssV3_1

{'score': 8.9, 'vector': 'CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:L'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
JetBrains
Published
Updated
Oct 1, 2026, 3:55 AM
Reserved
Sep 25, 2026, 5:02 PM
Status
Analyzed
Published
Sep 30, 2026, 4:16 PM
Modified
Oct 2, 2026, 4:01 PM