Vulnerability · Published Oct 15, 2026 · Assigned by JetBrains

CVE-2026-111091

High 7.8

In plain English

A high-severity security flaw in Junie CLI from JetBrains. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.1% (higher than 3% of all known vulnerabilities).

Severity (CVSS 3.1)7.8High
Exploit odds (30 days)0.1%top 97.0% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known

Official description

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

Affected products (as reported)

VendorProductVersions
JetBrains Junie CLI 0 – before 26.8.3

Weakness: CWE-829 · Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

References