---
id: CVE-2026-111091
title: >-
  In JetBrains Junie CLI before 26.8.3 code execution was possible via an
  untrusted project's MCP server configuration
summary: >-
  In JetBrains Junie CLI before 26.8.3 code execution was possible via an
  untrusted project's MCP server configuration
severity: high
cvss: 7.8
cvssVector: 'CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H'
cwe:
  - CWE-829
vendor: JetBrains
product: Junie CLI
affected:
  - junie_cli < 26.8.3
published: '2026-10-15'
updated: '2026-10-15'
sourceUpdated: '2026-10-15T17:17:16.380'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-111091'
references:
  - url: 'https://www.jetbrains.com/privacy-security/issues-fixed/'
    label: cve@jetbrains.com
tags:
  - nvd
  - cve.org
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: total
  timestamp: '2026-10-15T16:05:16.044096Z'
ingestedAt: '2026-10-15T16:13:11.356Z'
---

## Overview

In JetBrains Junie CLI before 26.8.3 code execution was possible via an untrusted project's MCP server configuration

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.