CVE-2026-100268
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Project Administrator Comment Exposure in JetBrains YouTrack

Publication date: 2026-09-30

Last updated on: 2026-09-30

Assigner: JetBrains s.r.o.

Description
In JetBrains YouTrack before 2026.2.19197 project administrators could read comments from other projects via notification templates

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Meta Information

Published
2026-09-30
Last Modified
2026-09-30
Generated
2026-09-30
AI Q&A
2026-09-30
EPSS Evaluated
N/A
NVD
CVE-2026-100268
EUVD
EUVD-2026-90012

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
jetbrains youtrack to 2026.2.19197 (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 in JetBrains YouTrack before version 2026.2.19197 allows project administrators to read comments from other projects through notification templates. This is a security flaw where improper access controls enable unauthorized data exposure.

Impact Analysis

If you use JetBrains YouTrack before 2026.2.19197, project administrators could access sensitive comments from other projects. This may lead to unauthorized data disclosure, privacy breaches, or information leaks affecting users and stakeholders.

Compliance Impact

This vulnerability could violate data protection regulations like GDPR and HIPAA by enabling unauthorized access to sensitive information. Organizations may face compliance penalties, legal consequences, and reputational damage due to potential data breaches.

Mitigation Strategies

Update JetBrains YouTrack to version 2026.2.19197 or later to address the vulnerability.

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