Cybersecurity
CISA: Ransomware gangs now exploiting critical TeamCity flaw
The U.S. Cybersecurity and Infrastructure Security Agency (CISA) warned federal agencies on Wednesday that ransomware gangs are now also exploiting a critical JetBrains TeamCity vulnerability patched in July.
Summary
The U.S. Cybersecurity and Infrastructure Security Agency (CISA) warned federal agencies on Wednesday that ransomware gangs are now also exploiting a critical JetBrains TeamCity vulnerability patched in July. JetBrains patched the security flaw (tracked as CVE-2026-63077 ) on July 25 in TeamCity On-Premises versions 2025.11.7 and 2026.1.3, saying it is a critical authentication bypass vulnerability that lets attackers with HTTP(S) access execute arbitrary operating system commands.
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