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Analysis · May 5, 2026 · Colten Anderson

TeamCity's path traversal took two years to reach KEV. That's a long time to leave a CI server exposed.

CVE-2024-27199, a path traversal in JetBrains TeamCity On-Premises, was patched in March 2024 and exploited by BianLian ransomware within days. CISA added it to KEV in April 2026 with a May 4 federal deadline. If you're still below 2023.11.4, this is two years overdue.