Detections
Analytics

JetBrains TeamCity < 2025.11.6 / 2026.x < 2026.1.2 Multiple Vulnerabilities

critical Nessus Plugin ID 339329

Synopsis

The instance of JetBrains TeamCity installed on the remote host is affected by multiple vulnerabilities.

Description

The version of JetBrains TeamCity installed on the remote host is prior to 2025.11.6, or prior to 2026.1.2. It is, therefore, affected by multiple vulnerabilities:

 - In JetBrains TeamCity before 2026.1.2, 2025.11.6 ode execution via Kotlin DSL sandbox escape was possible (CVE-2026-65906)

 - In JetBrains TeamCity before 2026.1.2, 2025.11.6 code execution in Git VCS roots was possible (CVE-2026-65907)

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

Solution

Upgrade to JetBrains TeamCity version 2025.11.6, 2026.1.2 or later.

See Also

http://www.nessus.org/u?6dd8b7db

Plugin Details

Severity: Critical

ID: 339329

File Name: jetbrains_teamcity_2026_1_2_2025_11_6.nasl

Version: 1.1

Type: Combined

Agent: windows, macosx, unix

Family: Misc.

Published: 8/25/2026

Updated: 8/25/2026

Configuration: Enable thorough checks (optional)

Supported Sensors: Nessus Agent, Nessus

Enable CGI Scanning: true

Risk Information

VPR

Risk Factor: Medium

Score: 5

Percentile: 93.88

CVSS v2

Risk Factor: Critical

Base Score: 10

Temporal Score: 7.4

Vector: CVSS2#AV:N/AC:L/Au:N/C:C/I:C/A:C

CVSS Score Source: CVE-2026-65906

CVSS v3

Risk Factor: Critical

Base Score: 10

Temporal Score: 8.7

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

Vulnerability Information

CPE: cpe:/a:jetbrains:teamcity

Required KB Items: installed_sw/JetBrains TeamCity

Exploit Ease: No known exploits are available

Patch Publication Date: 7/23/2026

Vulnerability Publication Date: 7/16/2026

Reference Information

CVE: CVE-2026-65906, CVE-2026-65907

CWE: 94

IAVA: 2026-A-0686