# CISA Warns of Actively Exploited TeamCity RCE Vulnerability

CISA has flagged a critical remote code execution vulnerability in TeamCity, tracked as CVE-2026-63077, as being actively exploited in the wild. Attackers can leverage this flaw to take over vulnerable JetBrains TeamCity servers, which are widely used for software development and CI/CD pipelines. Organizations using TeamCity should apply available patches immediately to prevent compromise.

**Importance:** 4/5

## Sources

### Security
- [The Hacker News](https://thehackernews.com/2026/08/cisa-flags-teamcity-cve-2026-63077-rce.html) — Thu, 06 Aug 2026 12:21:43 +0530