CVE-2026-103488
Received Received - Intake

Unauthorized Project Access in JetBrains YouTrack

Vulnerability report for CVE-2026-103488, including description, CVSS score, EPSS score, affected products, exploitability, helpful resources, and attack-flow context.

Publication date: 2026-10-01

Last updated on: 2026-10-01

Assigner: JetBrains s.r.o.

Description

In JetBrains YouTrack before 2026.2.19422 missing authorisation allowed authenticated users to add themselves to project teams and access restricted issues

CVSS Scores

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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
EUVD

Affected Vendors & Products

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

Helpful Resources

Exploitability

CWE
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KEV
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CWE ID Description
CWE-863 The product performs an authorization check when an actor attempts to access a resource or perform an action, but it does not correctly perform the check.

Attack-Flow Graph

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Executive Summary

This vulnerability in JetBrains YouTrack before 2026.2.19422 allows authenticated users to add themselves to project teams without proper authorization. This grants them access to issues that should be restricted.

Impact Analysis

An attacker with valid credentials could gain unauthorized access to sensitive issues, potentially exposing confidential data or disrupting project workflows. The impact includes data breaches and compromised project integrity.

Compliance Impact

This vulnerability could lead to unauthorized access to personal or sensitive data, violating GDPR and HIPAA requirements for data protection and access control. Non-compliance may result in legal penalties and reputational damage.

Mitigation Strategies

Update JetBrains YouTrack to version 2026.2.19422 or later to address the missing authorization issue.

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