CVE-2026-100264
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Stored SMTP Credentials Disclosure in JetBrains YouTrack

Publication date: 2026-09-30

Last updated on: 2026-09-30

Assigner: JetBrains s.r.o.

Description
In JetBrains YouTrack before 2026.2.18991 stored SMTP server credentials could be disclosed by changing the server host

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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-2026-100264
EUVD
EUVD-2026-90008

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
jetbrains youtrack to 2026.2.18991 (exc)

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Exploitability

CWE
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KEV
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CWE ID Description
CWE-522 The product transmits or stores authentication credentials, but it uses an insecure method that is susceptible to unauthorized interception and/or retrieval.

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Executive Summary

This vulnerability in JetBrains YouTrack before version 2026.2.18991 allows an attacker to disclose stored SMTP server credentials by changing the server host. This is a credential exposure issue where improper access controls permit unauthorized retrieval of sensitive configuration details.

Impact Analysis

If exploited, this vulnerability could allow attackers to gain access to SMTP server credentials. This may enable them to send unauthorized emails from your system, potentially leading to phishing attacks or further compromise of your infrastructure. The impact is limited as it requires prior access to change server settings.

Compliance Impact

This vulnerability could lead to non-compliance with GDPR or HIPAA if it results in unauthorized access to personal or health data transmitted via email. Exposure of SMTP credentials may violate data protection requirements for secure communication channels, potentially leading to regulatory penalties or legal consequences.

Mitigation Strategies

Update JetBrains YouTrack to version 2026.2.18991 or later to address the credential disclosure issue.

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