Code Injection in Vim - #VU133142
Published: June 1, 2026
Vulnerability identifier: #VU133142
CSH Severity: Medium
CVSS v4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: N/A
CWE-ID: CWE-94
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vendor: Vim.org
Affected software:
Vim
Vim
Detailed vulnerability description
The vulnerability allows a local user to execute arbitrary code.
The vulnerability exists due to improper control of code generation in python omni-completion in python3complete.vim when processing a crafted Python file during omni-completion. A local user can place a crafted Python file with attacker-controlled import statements and a sibling package in the working directory to execute arbitrary code.
User interaction is required to invoke omni-completion with CTRL-X CTRL-O while editing the crafted Python file, and the issue affects builds with the Python interpreter enabled and filetype plugins active.
Remediation
Install security update from vendor's website.