CVE-2026-52860

Description

Vim is an open source, command line text editor. Prior to version 9.2.0597, Vim's Python omni-completion executes reconstructed function and class definitions from the current buffer with exec() as part of populating the completion dictionary. Python evaluates function default values, parameter annotations, and class base expressions at definition time, so a hostile buffer can execute attacker-controlled Python expressions during omni-completion. The existing g:pythoncomplete_allow_import mitigation (GHSA-52mc-rq6p-rc7c) does not cover this path, because the attacker-controlled code is not a harvested import/from statement. This issue has been patched in version 9.2.0597.

References

https://github.com/vim/vim/security/advisories/GHSA-65p9-mwwx-7468

https://github.com/vim/vim/security/advisories/GHSA-52mc-rq6p-rc7c

https://github.com/vim/vim/releases/tag/v9.2.0597

https://github.com/vim/vim/commit/c8c63673bc4253212820626aeeb75999d9a539d2

Details

Source: Mitre, NVD

Risk Information

CVSS v2

CVSS v3

CVSS v4

EPSS