CVE-2026-86497
Received Received - Intake

Mailbox Credential Exposure in JetBrains YouTrack

Publication date: 2026-09-07

Last updated on: 2026-09-07

Assigner: JetBrains s.r.o.

Description
In JetBrains YouTrack before 2026.2.18769 changing a mailbox host without re-authentication allowed a project administrator to exfiltrate stored mailbox credentials

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Meta Information

Published
2026-09-07
Last Modified
2026-09-07
Generated
2026-09-07
AI Q&A
2026-09-07
EPSS Evaluated
N/A
NVD
CVE-2026-86497
EUVD
EUVD-2026-72513

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
jetbrains youtrack to 2026.2.18769 (exc)

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Exploitability

CWE
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KEV
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CWE ID Description
CWE-201 The code transmits data to another actor, but a portion of the data includes sensitive information that should not be accessible to that actor.

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Executive Summary

In JetBrains YouTrack before version 2026.2.18769, a flaw allowed a project administrator to access stored mailbox credentials without re-authentication when changing the mailbox host. This could lead to unauthorized credential exfiltration.

Impact Analysis

If you are a project administrator using JetBrains YouTrack before 2026.2.18769, an attacker with administrative access could steal stored mailbox credentials. This may allow unauthorized access to email accounts linked to the system.

Mitigation Strategies

Update JetBrains YouTrack to version 2026.2.18769 or later to address the vulnerability.

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