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High 7.3Known exploited (CISA KEV)Published Mar 4, 2024
CVE-2024-27199In JetBrains TeamCity before 2023.11.4 path traversal allowing to perform limited admin actions was possible
Updated under an hour ago ()
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It affects JetBrains TeamCity. Add what you run to find out whether that includes you.
CISA lists it as known exploited since Apr 20, 2026; federal agencies had to remediate by May 4, 2026, and it is known to be used in ransomware. Treat that date as your deadline.
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In JetBrains TeamCity before 2023.11.4 path traversal allowing to perform limited admin actions was possible
- CVSS
- 7.3 HIGH (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
- Weakness (CWE)
- CWE-23
- Known exploited
- Added to CISA KEV Apr 20, 2026; federal remediation due May 4, 2026; known ransomware useApply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
- EPSS (exploitation in the next 30 days)
- 99.99% (percentile 100)
- Assigned by
- JetBrains
- NVD analysis
- Analyzed
- Record last updated
- Apr 21, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
JetBrains TeamCity jetbrains:teamcity (from the name) | before 2023.11.4 | CNA record |
jetbrains teamcity jetbrains:teamcity | before 2023.11.4 | NVD |
References
- https://www.jetbrains.com/privacy-security/issues-fixed/vendor-advisory
- https://www.darkreading.com/cyberattacks-data-breaches/jetbrains-teamcity-mass-exploitation-underway-rogue-accounts-thrivepress/media-coverage
- https://github.com/Stuub/RCity-CVE-2024-27198/blob/main/RCity.pyexploit
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2024-27199us-government-resource
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.