OS Command Injection in Vim - #VU139260
Published: July 24, 2026 / Updated: July 24, 2026
Vulnerability identifier: #VU139260
CSH Severity: Medium
CVSS v4: 7 [CVSS:4.0/AV:L/AC:L/AT:P/PR:N/UI:A/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N]
CVE-ID: N/A
CWE-ID: CWE-78
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to execute arbitrary code.
The vulnerability exists due to command injection in the shell filetype plugins when processing a crafted Visual mode selection through keyword lookup with K. A remote attacker can trick the victim into opening a crafted file, selecting a crafted line, and invoking keyword lookup to execute arbitrary code.
User interaction is required to select the crafted text in Visual mode and invoke K, and the issue affects buffers whose filetype resolves to sh, bash, zsh, or PowerShell with filetype plugins enabled.
Affected software
Vim
Remediation
Install security update from vendor's website.
Vim - update to 9.2.0839