CVE-2026-100266
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Authenticated Email Sending in JetBrains Hub

Publication date: 2026-09-30

Last updated on: 2026-09-30

Assigner: JetBrains s.r.o.

Description
In JetBrains Hub before 2026.2.52366 missing authorisation allowed authenticated users to send arbitrary emails from the server's trusted address

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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-2026-100266
EUVD
EUVD-2026-90010

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
jetbrains hub to 2026.2.52366 (exc)

Helpful Resources

Exploitability

CWE
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KEV
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CWE ID Description
CWE-862 The product does not perform an authorization check when an actor attempts to access a resource or perform an action.

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Executive Summary

This vulnerability in JetBrains Hub before 2026.2.52366 allows authenticated users to send emails from the server's trusted address without proper authorization. This could enable phishing attacks or misuse of the server's email reputation.

Impact Analysis

An attacker could exploit this to send malicious emails appearing to come from your organization, potentially tricking recipients into disclosing sensitive information or installing malware. It may also damage your organization's reputation.

Compliance Impact

This vulnerability could lead to unauthorized data exposure or phishing attacks, violating GDPR's data protection requirements or HIPAA's security rules for protected health information. Organizations may face compliance penalties if exploited.

Mitigation Strategies

Update JetBrains Hub to version 2026.2.52366 or later to address the missing authorization issue that allows authenticated users to send arbitrary emails from the server's trusted address.

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