CVE-2024-27199

Relative Path Traversal in JetBrains TeamCity. CISA confirmed attackers exploit it and added it to its Known Exploited Vulnerabilities catalog on 20 April 2026.

Product
JetBrains TeamCity
Added to CISA's catalog
Federal fix-by date
Ransomware
Known to be used in ransomware

CISA’s description.

JetBrains TeamCity contains a relative path traversal vulnerability that could allow limited admin actions to be performed.

Every flaw CISA confirmed exploited in the last 30 days is on the exploit watch. This is not security advice. Check the vendor’s advisory before acting. From CISA’s catalog of 4 November 2026.