CVE-2026-52858

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.

• How can I get the fixes?
• What do statuses mean?
• Patch details

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Patch details

Severity score breakdown

CVSS version: CVSS v4.0 CVSS v4.0 CVSS v3.0

References

• MITRE
• NVD
• Launchpad
• Debian

Related Ubuntu Security Notices (USN)

• USN-8451-1
• Vim vulnerabilities
• 18 June 2026

Other references

• https://www.cve.org/CVERecord?id=CVE-2026-52858
• https://github.com/vim/vim/security/advisories/GHSA-52mc-rq6p-rc7c
• https://github.com/vim/vim/commit/4b850457e12e1a678dd209f2868154f7553cbf8d
• https://github.com/vim/vim/releases/tag/v9.2.0561