CVE-2026-49377: Medium severity JetBrains TeamCity vulnerability

Published May 29, 2026
·
Updated

In JetBrains TeamCity before 2025.11.2 exposure of sensitive data via default agent parameters

Affected Software

2 affected components
JetBrains TeamCity<2025.11.2
JetBrains TeamCity<2025.11.2

Remediation

Recommended actions to resolve this vulnerability, in priority order.

  1. Upgrade

    Upgrade JetBrains TeamCity to a version that resolves this vulnerability.

    Fixed in 2025.11.2

Event History

May 29, 2026
CVE Published
via MITRE·06:15 PM
Data Sourced
via MITRE·06:15 PM
DescriptionSeverityWeakness
Data Sourced
via NVD·07:16 PM
DescriptionSeverityWeaknessAffected Software
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Frequently Asked Questions

1

What is the severity of CVE-2026-49377?

The severity of CVE-2026-49377 is medium, with a score of 4.3.

2

What does CVE-2026-49377 affect?

CVE-2026-49377 affects JetBrains TeamCity prior to version 2025.11.2.

3

What is the description of CVE-2026-49377?

CVE-2026-49377 involves the exposure of sensitive data via default agent parameters.

4

How do I fix CVE-2026-49377?

To fix CVE-2026-49377, update to JetBrains TeamCity version 2025.11.2 or later.

5

What are the risks associated with CVE-2026-49377?

CVE-2026-49377 poses a risk of sensitive data exposure, impacting confidentiality.

Contact

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