ACTIVELY EXPLOITED
CVE-2023-42793: JetBrains TeamCity Authentication Bypass Vulnerability
| Vendor | JetBrains |
|---|---|
| Product | TeamCity |
| Actively exploited | Yes |
| Added to CISA KEV | 4 Oct 2023 |
| CISA federal deadline | 25 Oct 2023 |
| Ransomware use | Known |
| Weakness (CWE) | CWE-288 |
Required action (CISA's text)
Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.
Description (NVD)
JetBrains TeamCity contains an authentication bypass vulnerability that allows for remote code execution on TeamCity Server.
SOURCES
Other JetBrains flaws
- CVE-2026-63077: JetBrains TeamCity Deserialization of Untrusted Data Vulnerability
- CVE-2024-27199: JetBrains TeamCity Relative Path Traversal Vulnerability
- CVE-2024-27198: JetBrains TeamCity Authentication Bypass Vulnerability
Data from NVD, CISA KEV, FIRST EPSS and vendor advisories. Updated 10 Nov 2026.