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JetBrains TeamCity SAML Login Page Stored Cross-Site Scripting Vulnerability

Vulnerability

A stored cross-site scripting vulnerability has been identified in JetBrains TeamCity versions prior to 2026.1. This issue occurs on the SAML login page, where an authenticated user could inject malicious scripts that would be executed in the context of the user.

Impact

Exploitation of this vulnerability allows for stored cross-site scripting, where injected scripts are executed in the context of the user.

Remediation

Users can upgrade to TeamCity version 2026.1 or later to address this vulnerability.

Added: May 29, 2026, 7:25 PM
Updated: May 29, 2026, 7:25 PM

Vulnerability Rating

Custom Algorithm
spread
5.0
impact
1.7
exploitability
6.4
remediation
7.7
relevance
9.6
threat
0.0
urgency
2.9
incentive
0.0

Our algorithm analyzes dozens of metrics to generate these 8 key vulnerability categories, which are then combined to calculate the overall risk score.