In JetBrains TeamCity before 2026.2, 2026.1.4, 2025.11.8 remote code execution via a whitelist bypass in the build messages protocol was possible
Fix
Patch, vendor advisory and mitigation references on NVD 1
- https://www.jetbrains.com/privacy-security/issues-fixed/ Vendor Advisory
Every line above is quoted from NVD, CISA, Microsoft, the vendor's own advisory or DISA; nothing is generated.
Change history 5
- Cpes+1 CPE criteria (now 1)NVD modified 2026-10-16 19:19
- StatusUndergoing Analysis → AnalyzedNVD modified 2026-10-16 19:19
- CVSS8.1 (v3.1, CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H) → 9.8 (v3.1, CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H)NVD modified 2026-10-16 19:19
- StatusAwaiting Analysis → Undergoing AnalysisNVD modified 2026-10-15 17:17
- First seenCVSS 8.1NVD modified 2026-10-15 16:23
Affected (CPE criteria) 1
cpe:2.3:a:jetbrains:teamcity:*:*:*:*:*:*:*:*
References 1
- https://www.jetbrains.com/privacy-security/issues-fixed/ Vendor Advisory