CVE-2026-111091 json
In JetBrains Junie CLI before 26.8.3 code execution was possible via an untrusted project's MCP server configuration
published 25d ago modified 25d ago also EUVD-2026-102144
- cvss
- 7.8
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.1%
- EPSS 0.1% chance of exploitation in 30 days, percentile 2%
- public exploits
- 0
- none known
Summary
In JetBrains Junie CLI before 26.8.3 code execution was possible via an untrusted project's MCP server configuration
Patch / fix
- JetBrains Junie CLI 26.8.3
Is CVE-2026-111091 in your stack? Fencer shows which of your repositories are affected as soon as an advisory lands, and opens the fix as a pull request.
Check with FencerCISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- total
- Assessed
- 25d ago
Exploit prediction
0.14% chance of exploitation in the next 30 days, higher than 2% of all scored CVEs (FIRST EPSS, 2026-11-09).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 7.8 | CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H |
Affected products
- JetBrains Junie CLI
Classification
- Weakness
-
- CWE-829 Inclusion of Functionality from Untrusted Control Sphere
References
Sources
- CVE List CVE-2026-111091
- NVD CVE-2026-111091
Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.