CVE-2026-52858 HIGH

CVE-2026-52858: Vim: Arbitrary Code Execution via Python Omni-Completion

Vendor Vim
Product vim
Weakness CWE-94 · Code injection
Published June 11, 2026
Last update June 12, 2026

CVSS base score

7.3/10
Attack vector Network
Attack complexity Low
Privileges required Low
User interaction
Confidentiality
Integrity

CVSS vector

CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

What the vulnerability does

01Description

Vim is an open source, command line text editor. Prior to version 9.2.0561, the Python omni-completion script in python3complete.vim for Vim with the +python3 interpreter enabled (and the legacy pythoncomplete.vim for builds with the +python interpreter) executes the import and from statements found in the current buffer through Python's import machinery. Because the buffer's working directory is on sys.path, opening a hostile .py file with a sibling Python package and invoking omni-completion runs that package's top-level code as the editing user. This issue has been patched in version 9.2.0561.

Key dates

02Disclosure timeline

June 11, 2026 CVE published
June 12, 2026 Record updated

Related vulnerabilities

04Related CVE