A critical vulnerability in TeamCity has been identified, allowing attackers to execute OS commands without needing to log in. This flaw, highlighted by Ravie Lakshmanan on July 28, 2026, poses significant risks to enterprise security and underscores the necessity for organizations to address such vulnerabilities to safeguard their systems.
TeamCity flaw lets attackers run OS commands without login
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ACSC Warns of Active TeamCity Exploits via CVE-2026-63077
infosecurity-magazine.com
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CVE-2026-63077 lets attackers hijack JetBrains TeamCity servers
securityonline.info
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CVE-2026-63077 Flaw Lets Attackers Hijack JetBrains TeamCity
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Rapid7 Analysis: Unauthenticated Remote Code Execution in JetBrains TeamCity (CVE-2026-63077)
rapid7.com
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CISA puts TeamCity CVE-2026-63077 in KEV, mandates fix by August
securityaffairs.com
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TeamCity flaw lets attackers run OS commands without login
thehackernews.com