Critical TeamCity Flaw Could Let Attackers Run OS Commands Without Logging In

The Hacker News 28 July 2026, 11:11 EEST Security

JetBrains is urging customers of on-premise versions of TeamCity to update to the latest version following the discovery of a critical security issue that could result in arbitrary code execution. The vulnerability, assigned CVE-2026-63077 (CVSS score: 9.8), affects all TeamCity On-Premises versions. It has been addressed in versions 2025.11.7 and 2026.1.3. TeamCity Cloud instances have…

Read the full story on The Hacker News https://thehackernews.com/2026/07/critical-teamcity-flaw-could-let.html

Attacks like this land on ordinary sites far more often than on chosen targets. If you would rather your site never became the story, CrockyHost hosting ships with daily backups, automatic updates and a firewall we manage.

Keep reading

The Network Has Become the Control Plane for AI Security The Hacker News
Hackers Exploit AnySign4PC via Hacked Korean Sites to Install Backdoors Without Prompts The Hacker News
Russian Hackers Exploit Microsoft OWA Flaw to Keep Mailbox Access After Credential Rotation The Hacker News
Cisco FMC Zero-Day Actively Exploited, Static Credentials Could Expose Sensitive Data The Hacker News