SOC status:Duty analyst on shift

UK Cyber Defence
VulnerabilityAwaiting Analysis

CVE-2026-111091

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

HIGH 7.8EPSS 0.14%

Does this matter?

High impact if exploited, but EPSS currently rates exploitation as unlikely (0.14%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.

Description

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

CVSS 3.1
7.8 HIGHCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
EPSS
0.14% probability · 3th percentile
Public exploits
None in Exploit-DB
CISA KEV
Not listed
Weakness
CWE-829
Source
cve@jetbrains.com
EPSS trend
0%3%5%16 October 2026: 0.14%26 October 2026: 0.14%16 October 202626 October 2026

EPSS moved from 0.1% on 16 October 2026 to 0.1% on 26 October 2026.

Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.