CVE-2026-103496
Received Received - Intake

Insecure Direct Object Reference in JetBrains YouTrack

Publication date: 2026-10-01

Last updated on: 2026-10-01

Assigner: JetBrains s.r.o.

Description
In JetBrains YouTrack before 2026.2.19422 iDOR in inbox threads allowed reading other users' notifications

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Meta Information

Published
2026-10-01
Last Modified
2026-10-01
Generated
2026-10-01
AI Q&A
2026-10-01
EPSS Evaluated
N/A
NVD
CVE-2026-103496
EUVD
EUVD-2026-90587

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
jetbrains youtrack to 2026.2.19422 (exc)

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Exploitability

CWE
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KEV
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CWE ID Description
CWE-639 The system's authorization functionality does not prevent one user from gaining access to another user's data or record by modifying the key value identifying the data.

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Executive Summary

This vulnerability is an Insecure Direct Object Reference (IDOR) in JetBrains YouTrack before version 2026.2.19422. It allows unauthorized users to read other users' notifications by manipulating inbox thread access.

Impact Analysis

An attacker could exploit this to access sensitive notifications of other users, potentially exposing private information such as system alerts, updates, or user-specific data.

Compliance Impact

This vulnerability could lead to unauthorized access to personal data, violating GDPR's data protection principles and HIPAA's confidentiality requirements. Organizations using affected YouTrack versions may face compliance violations and legal penalties.

Mitigation Strategies

Update JetBrains YouTrack to version 2026.2.19422 or later to address the iDOR vulnerability in inbox threads.

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