Vulnerability Description
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.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Vim | Vim | < 9.2.0561 |
Related Weaknesses (CWE)
References
- https://github.com/vim/vim/commit/4b850457e12e1a678dd209f2868154f7553cbf8dPatch
- https://github.com/vim/vim/releases/tag/v9.2.0561Product
- https://github.com/vim/vim/security/advisories/GHSA-52mc-rq6p-rc7cMitigationVendor Advisory
FAQ
What is CVE-2026-52858?
CVE-2026-52858 is a vulnerability with a CVSS score of 7.8 (HIGH). 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 pytho...
How severe is CVE-2026-52858?
CVE-2026-52858 has been rated HIGH with a CVSS base score of 7.8/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-52858?
Check the references section above for vendor advisories and patch information. Affected products include: Vim Vim.