Is JetBrains TeamCity safe right now?
No JetBrains TeamCity flaws have been added to CISA's exploited list in the last 90 days (the most recent was Aug 5, 2026). Keep automatic updates on: that can change any day.
Earlier exploited flaws
- JetBrains TeamCity Deserialization of Untrusted Data Vulnerability
- JetBrains TeamCity Relative Path Traversal Vulnerability
- JetBrains TeamCity Authentication Bypass Vulnerability Zero-day
- JetBrains TeamCity Authentication Bypass Vulnerability
By year
| Year | Exploited flaws added | Zero-days |
|---|---|---|
| 2026 (so far) | 2 | 0 |
| 2025 | 0 | 0 |
| 2024 | 1 | 1 |
| 2023 | 1 | 0 |
| 2022 | 0 | 0 |
Questions
Is JetBrains TeamCity safe right now?
No JetBrains TeamCity flaws have been added to CISA's exploited list in the last 90 days (the most recent was Aug 5, 2026). Keep automatic updates on: that can change any day. Confirm with the vendor's own advisories and install updates as soon as they're available.
How many JetBrains TeamCity vulnerabilities have been exploited?
4 flaws are on CISA's list of vulnerabilities known to be exploited in real attacks, 4 of them used by ransomware.
Covers products matching jetbrains, teamcity. Sources: CISA's Known Exploited Vulnerabilities catalog and the vendors' own advisories. Updated every hour. General information only; confirm details with the vendor.