CVE-2026-100276
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Privilege Escalation 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 guest users could remove a workflow action's visibility restriction and run the action

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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-2026-100276
EUVD
EUVD-2026-90020

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
jetbrains youtrack to 2026.2.19197 (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.

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Executive Summary

In JetBrains YouTrack before version 2026.2.19197, guest users could bypass workflow action visibility restrictions and execute restricted actions. This is a privilege escalation issue where unauthorized users gain access to sensitive functions.

Impact Analysis

This vulnerability allows guest users to perform actions they should not have permission to execute. Depending on the restricted actions, this could lead to unauthorized modifications, data leaks, or system disruptions in YouTrack.

Compliance Impact

This vulnerability could violate compliance requirements that mandate strict access controls and audit logging. Unauthorized actions may lead to data breaches, compromising GDPR or HIPAA compliance due to improper access and potential data exposure.

Mitigation Strategies

Update JetBrains YouTrack to version 2026.2.19197 or later to address the vulnerability. Restrict guest user permissions to prevent unauthorized workflow action modifications.

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