CVE-2026-111091
In JetBrains Junie CLI before 26.8.3 code execution was possible via an untrusted project's MCP server configuration
JetBrains Junie CLI
CVSS
7.8HighExploitationNo known exploitationNot in CISA KEV, which does not prove it is unexploitedCISA KEV
Exploit odds (EPSS)0.14%Chance of exploitation activity in the next 30 days, higher than 2% of CVEs. Scored 23 Oct 2026FIRST EPSS
What fixes it
- 26.8.3Junie CLICVE List
A fixed version on one release line is not the upgrade target for every line. Check your exact version and any vendor backports.
Affected versions 1
- Junie CLIaffected: all versions before 26.8.3CVE List