CVE-2026-49373: In JetBrains TeamCity before 2026.1 remote code execution was possible via Perforce connection settings
- Is it exploited?
Not on CISA's list. CISA has not added it to the Known Exploited Vulnerabilities catalog as of . If CISA adds it, this page shows it as known exploited.
- How likely is exploitation in the next 30 days?
- 24.9%
EPSS score, percentile 97.9 of all scored records. A probability estimated by FIRST, not a report of exploitation.
- How severe?
- 7.1 High
CVSS v3.1 base score, given by the CNA
- What should I do?
CISA has set no required action, because the vulnerability is not in KEV.
The CVE record links no vendor advisory, patch or mitigation.
- Which versions are affected?
Affected
- before 2026.1
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
Advisories and patches
The CVE record links no vendor advisory, patch or mitigation.
Affected products and versions
As listed in the CVE record.
| Status | Versions |
|---|---|
| Affected | before 2026.1 |
Versions not listed are: unaffected.
Source: CVE List V5 (CVE Program), cve_2026-10-28_0000Z, as of . About the data.
About this vulnerability
In JetBrains TeamCity before 2026.1 remote code execution was possible via Perforce connection settings
Summary: CVE record, as of .
- CISA has not added CVE-2026-49373 to its Known Exploited Vulnerabilities (KEV) catalog, as of 28 Oct 2026.
- The CVE record was published on 29 May 2026.
- The CVE record carries a CVSS v3.1 base score of 7.1 (High), given by its CNA.
- FIRST's EPSS model puts the probability of exploitation in the next 30 days at 24.9% (percentile 97.9), as of 28 Oct 2026. EPSS is a statistical estimate, not a report of exploitation.
- CISA's SSVC assessment in the CVE record: exploitation none, automatable no, technical impact total.
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 2026.1 remote code execution was possible via Perforce connection settings
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.
Timeline
| Date | Event |
|---|---|
| CVE record published | |
| CVE record last updated |
References
Known exploited JetBrains vulnerabilities
- 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
- CVE-2023-42793: JetBrains TeamCity Authentication Bypass Vulnerability