CVE-2026-57456

Description

Vim is an open source, command line text editor. Prior to 9.2.0699, Vim's Python omni-completion (runtime/autoload/python3complete.vim and the legacy pythoncomplete.vim) executes reconstructed function and class definitions from the current buffer with exec() as part of populating the completion dictionary. When reconstructing that source, each scope's docstring is inserted verbatim between triple quotes with no escaping, so a hostile buffer can break out of the triple-quoted literal and execute attacker-controlled Python during omni-completion. This vulnerability is fixed in 9.2.0699.

References

https://github.com/vim/vim/security/advisories/GHSA-ppj8-wqjf-6fp3

https://github.com/vim/vim/releases/tag/v9.2.0699

https://github.com/vim/vim/commit/cce141c42740f122dd8486ae04e21c2a81016ba8

Details

Source: Mitre, NVD

Risk Information

CVSS v2

CVSS v3

CVSS v4

EPSS