JetBrains known exploited vulnerabilities
CISA's Known Exploited Vulnerabilities catalog lists 4 JetBrains vulnerabilities: 2 added in the last 365 days, 3 rated critical (CVSS 9 or higher), and 4 with known ransomware use. The most recent was added Aug 5, 2026.
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| Added to KEV | CVE | Vulnerability | CVSS | EPSS | Federal due date | Ransomware use |
|---|---|---|---|---|---|---|
| 2026-08-05 | CVE-2026-63077 | JetBrains TeamCity Deserialization of Untrusted Data Vulnerability | 9.8 (v3.1) | 93.6% | 2026-08-08 | Known |
| 2026-04-20 | CVE-2024-27199 | JetBrains TeamCity Relative Path Traversal Vulnerability | 7.3 (v3.1) | >99.9% | 2026-05-04 | Known |
| 2024-03-07 | CVE-2024-27198 | JetBrains TeamCity Authentication Bypass Vulnerability | 9.8 (v3.1) | >99.9% | 2024-03-28 | Known |
| 2023-10-04 | CVE-2023-42793 | JetBrains TeamCity Authentication Bypass Vulnerability | 9.8 (v3.1) | >99.9% | 2023-10-25 | Known |