anonhaven

CVE-2026-111094

CRITICAL CVSS 3.1: 9.8 EPSS 0.38%
Updated Oct 16, 2026
Jetbrains
Parameter Value
CVSS 9.8 (CRITICAL)
Affected Versions 2026.1 — 2026.1.4
Fixed In 2025.11.8
Type CWE-502 (Deserialization of Untrusted Data)
Vendor Jetbrains
Public PoC No

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

Attack Parameters

Attack Vector
Network
Can be exploited remotely
Attack Complexity
Low
Easy to exploit
Privileges Required
None
No privileges needed
User Interaction
None
No user interaction needed

Impact Assessment

Confidentiality
High
Complete data leak
Integrity
High
Complete data modification
Availability
High
Complete denial of service

CVSS Vector v3.1

Weakness Type (CWE)

CWE-502 Deserialization of Untrusted Data

Vulnerable Products 2

Configuration From (including) Up to (excluding)
Jetbrains Teamcity
cpe:2.3:a:jetbrains:teamcity:*:*:*:*:*:*:*:*
 — 2025.11.8
Jetbrains Teamcity
cpe:2.3:a:jetbrains:teamcity:*:*:*:*:*:*:*:*
 2026.1 2026.1.4

References 1

https://www.jetbrains.com/privacy-security/issues-fixed/
cve@jetbrains.com
Share Post Share Share Share

Related Vulnerabilities

CVE-2026-111096

Jetbrains

5.4

CVE-2026-111095

Jetbrains

5.4

CVE-2026-106219

Jetbrains

7.5

CVE-2026-106218

Jetbrains

10.0

CVE-2026-103497

GitHub

5.5