Attackers Breached JetBrains Cadence via Unpatched TeamCity, Extracting AWS Credentials

Attackers Breached JetBrains Cadence via Unpatched TeamCity, Extracting AWS Credentials
JetBrains is warning Cadence users to revoke and rotate all credentials after attackers exploited CVE-2026-63077 in TeamCity to breach its environment and potentially access backups, source code, and secrets. The incident may have exposed personal data, AWS IAM credentials, S3 files, and PyCharm-synced project contents, prompting urgent review of connected systems and suspicious activity. #JetBrains #Cadence #TeamCity #CVE-2026-63077

Keypoints

  • JetBrains says Cadence users should revoke or rotate all credentials and secrets immediately.
  • Attackers exploited CVE-2026-63077 in TeamCity to access JetBrains’ Cadence environment.
  • The compromised data may include personal information, backups, source code, and AWS IAM credentials.
  • JetBrains invalidated Cadence plugin access tokens and shut down the affected server.
  • Users should inspect AWS, S3, repositories, and other connected systems for suspicious activity.

Read More: https://thehackernews.com/2026/09/attackers-breached-jetbrains-cadence.html