CVE-2026-49376: Medium severity JetBrains TeamCity (SAML plugin) vulnerability
Published May 29, 2026
·Updated
In JetBrains TeamCity before 2026.1 insufficient username validation in the SAML plugin
Affected Software
2 affected components
JetBrains TeamCity (SAML plugin)<2026.1
JetBrains TeamCity<2026.1
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Upgrade
Upgrade
JetBrains TeamCityto a version that resolves this vulnerability.Fixed in 2026.1
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
Frequently Asked Questions
1
What is the severity of CVE-2026-49376?
CVE-2026-49376 has a medium severity rating of 6.5.
2
What vulnerability is present in CVE-2026-49376?
CVE-2026-49376 involves insufficient username validation in the SAML plugin for JetBrains TeamCity.
3
How do I fix CVE-2026-49376?
To fix CVE-2026-49376, update JetBrains TeamCity to version 2026.1 or later.
4
Who is affected by CVE-2026-49376?
Users of JetBrains TeamCity prior to version 2026.1 utilizing the SAML plugin are affected by CVE-2026-49376.
5
What impact does CVE-2026-49376 have on systems?
CVE-2026-49376 could allow unauthorized actions due to insufficient username validation in affected systems.