Vulnerabilities · InfosecFeed Brief

CISA Flags TeamCity CVE-2026-63077 RCE Flaw Under Active Exploitation in the Wild

What you need to know

A newly patched security flaw impacting on-premise versions of JetBrains TeamCity has come under active exploitation in the wild, according to the U.S. Cybersecurity and Infrastructure Security Agency (CISA). The vulnerability in question is CVE-2026-63077 (CVSS score: 9.8), a case of deserialization of untrusted data that could allow an unauthenticated…

Source transparency

This is an InfosecFeed curated brief based on reporting from The Hacker News. InfosecFeed does not claim ownership of the original reporting.

Read the original report at The Hacker News ↗