CVE-2024-27199: JetBrains TeamCity Relative Path Traversal Vulnerability
- Is it exploited?
Yes. CISA added it to the Known Exploited Vulnerabilities catalog on , 777 days after the CVE record was published.
- How likely is exploitation in the next 30 days?
- 100%
EPSS score, percentile 100 of all scored records
- How severe?
- 7.3 High
CVSS v3.1 base score, given by the CNA
- What should I do?
CISA deadline . Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
The CVE record links no vendor advisory, patch or mitigation.
- Which versions are affected?
Affected
- before 2023.11.4
Source: CISA Known Exploited Vulnerabilities (KEV) catalog, 2026.10.28, as of ; FIRST Exploit Prediction Scoring System (EPSS), v2026.06.15, as of ; CVE List V5 (CVE Program), cve_2026-10-28_0000Z, as of . About the data.
What to do
Required action, set by CISA
Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
CISA due date for this action: .
Advisories and patches
The CVE record links no vendor advisory, patch or mitigation.
Linked from CISA's catalog entry
- https://www.jetbrains.com/privacy-security/issues-fixed/
- https://blog.jetbrains.com/teamcity/2024/03/additional-critical-security-issues-affecting-teamcity-on-premises-cve-2024-27198-and-cve-2024-27199-update-to-2023-11-4-now/
- https://nvd.nist.gov/vuln/detail/CVE-2024-27199
Affected products and versions
As listed in the CVE record.
| Status | Versions |
|---|---|
| Affected | before 2023.11.4 |
Versions not listed are: unaffected.
Source: CVE List V5 (CVE Program), cve_2026-10-28_0000Z, as of . About the data.
About this vulnerability
JetBrains TeamCity contains a relative path traversal vulnerability that could allow limited admin actions to be performed.
Summary: CISA's KEV catalog, as of .
- CISA added CVE-2024-27199 to its Known Exploited Vulnerabilities (KEV) catalog on 20 Apr 2026.
- CISA marks it as known to be used in ransomware campaigns.
- The due date CISA sets for the required action is 4 May 2026.
- The CVE record was published on 4 Mar 2024, 777 days before it was added to KEV.
- The CVE record carries a CVSS v3.1 base score of 7.3 (High), given by its CNA.
- FIRST's EPSS model puts the probability of exploitation in the next 30 days at 100% (percentile 100), as of 28 Oct 2026.
- CISA's SSVC assessment in the CVE record: exploitation active, automatable yes, technical impact partial.
Source: CISA Known Exploited Vulnerabilities (KEV) catalog, 2026.10.28, as of ; CVE List V5 (CVE Program), cve_2026-10-28_0000Z, as of ; FIRST Exploit Prediction Scoring System (EPSS), v2026.06.15, as of . About the data.
Description
In JetBrains TeamCity before 2023.11.4 path traversal allowing to perform limited admin actions was possible
Source: CVE List V5 (CVE Program), cve_2026-10-28_0000Z, as of . About the data.
Weakness
CWE and CAPEC are maintained by MITRE; the entries are those named in the CVE record and the KEV entry.
Timeline
| Date | Event |
|---|---|
| CVE record published | |
| Added to CISA KEV | |
| CVE record last updated | |
| CISA due date for the required action |
References
More exploited JetBrains vulnerabilities
- CVE-2026-63077: JetBrains TeamCity Deserialization of Untrusted Data Vulnerability
- CVE-2024-27198: JetBrains TeamCity Authentication Bypass Vulnerability
- CVE-2023-42793: JetBrains TeamCity Authentication Bypass Vulnerability