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CVE-2026-52858

Vim: Arbitrary Code Execution via Python Omni-Completion

Published: 6/11/2026 Last updated: 6/12/2026 Reserved: 6/8/2026

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.

CNA assigner: GitHub_M (a0819718-46f1-4df5-94e2-005712e83aaa) Requested by: n/a

Metrics

Version Score Severity Vector String
4.0 7.3 High 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

Opam packages affected (1)

conf-vim

Products affected (2)

Product Vendor Version
vim vim bb1f3b3666124b888f1e4bcf51b6fba9fbb01d15
vim vim < 6.1.9

References (6)