CVE-2026-103496

YouTrack Unauthorized Notification Disclosure via iDOR in Inbox Threads

Published Oct 1, 2026 CVSS 3.1 · 5.4 Medium EPSS < 1% KEV · Not listed
Description
In JetBrains YouTrack before 2026.2.19422 iDOR in inbox threads allowed reading other users' notifications

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': 'partial'}, '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 YouTrack Unauthorized Notification Disclosure via iDOR in Inbox Threads
Type Values Removed Values Added
Description In JetBrains YouTrack before 2026.2.19422 iDOR in inbox threads allowed reading other users' notifications
Weaknesses CWE-639
References
Metrics cvssV3_1

{'score': 5.4, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
JetBrains
Published
Updated
Oct 1, 2026, 1:36 PM
Reserved
Sep 30, 2026, 5:07 PM
Status
Analyzed
Published
Oct 1, 2026, 10:17 AM
Modified
Oct 1, 2026, 2:25 PM