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

7.3HIGH

Key Information:

Vendor

Vim

Status
Vim
Vendor
CVE Published:
11 June 2026

What is CVE-2026-52858?

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.

Affected Version(s)

vim < 9.2.0561

References

https://github.com/vim/vim/security/advisories/GHSA-52mc-...
x_refsource_CONFIRM
https://github.com/vim/vim/commit/4b850457e12e1a678dd209f...
x_refsource_MISC
https://github.com/vim/vim/releases/tag/v9.2.0561
x_refsource_MISC

CVSS V4

Score:
7.3
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
Physical
Privileges Required:
Undefined
User Interaction:
Unknown

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.