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JetBrains TeamCity Reflected Cross-Site Scripting Vulnerability

Vulnerability

A reflected cross-site scripting vulnerability has been identified in JetBrains TeamCity versions prior to 2026.1.1. The issue arises in the keyword filter, where an authenticated user can inject malicious scripts that are then executed in the context of the user's browser.

Impact

Exploitation of this vulnerability allows for reflected cross-site scripting, where an attacker can inject malicious scripts that are executed in the context of the user's browser.

Remediation

Users can upgrade to TeamCity version 2026.1.1 or later to address this vulnerability.

Added: May 29, 2026, 7:31 PM
Updated: May 29, 2026, 7:31 PM

Vulnerability Rating

Custom Algorithm
spread
5.0
impact
1.7
exploitability
6.2
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.