What is CVE-2026-111091?

CVE-2026-111091 is a high-severity vulnerability in Jetbrains Junie Cli, classified under Inclusion of Functionality from Untrusted Control Sphere. CVSS score: 7.8/10. Published 2026-10-15.

How severe is CVE-2026-111091?

High severity. CVSS v3 base score is 7.8 out of 10.

Vulnerability in Jetbrains Junie Cli

CVE-2026-111091

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

Published 2026-10-15 · last modified 2026-10-15.

CVSS v3 metric

CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.

EPSS exploit prediction

No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.

Affected products

Jetbrains Junie Cli

Weakness classification (CWE)

CWE-829 — Inclusion of Functionality from Untrusted Control Sphere

References

www.jetbrains.com/privacy-security/issues-fixed/

Frequently asked questions

What is CVE-2026-111091?: CVE-2026-111091 is a high-severity vulnerability in Jetbrains Junie Cli, classified under Inclusion of Functionality from Untrusted Control Sphere. CVSS score: 7.8/10. Published 2026-10-15.
How severe is CVE-2026-111091?: High severity. CVSS v3 base score is 7.8 out of 10.