Attackers Breached JetBrains Cadence via Unpatched TeamCity, Extracting AWS Credentials

Attackers Breached JetBrains Cadence via Unpatched TeamCity, Extracting AWS Credentials Ravie LakshmananSep 05, 2026Data Breach / Identity Security JetBrains is urging Cadence users to revoke and rotate all credentials following a security incident last month in which unidentified threat actors exploited a recently disclosed critical vulnerability in TeamCity to breach its own environment. "Cadence users should immediately revoke or rotate all credentials and secrets that may have been used to run their Cadence executions," JetBrains said. "They should also treat all executions, including their inputs and outputs in your Cadence project, as potentially untrusted." "As the threat actors gained access to the Cadence server, any credentials or secrets stored in Cadence, contained in the compromised backup, or made available to…