CVE-2026-59858 | Vim is an open source, command line text editor. Prior to 9.… | CVSS 8.4 HIGH

Description

Vim is an open source, command line text editor. Prior to 9.2.0735, the C omni-completion script in runtime/autoload/ccomplete.vim interpolates the typeref: or typename: extension field of a tags entry, without escaping, into a :vimgrep pattern that is run through :execute. Because :vimgrep honors the bar as a command separator, a crafted tag field can close the search pattern and append an arbitrary Ex command; opening a hostile .c file whose project tags file contains such an entry and invoking C omni-completion runs that command as the editing user. This issue is fixed in version 9.2.0735.

Metadata

CVE ID: CVE-2026-59858
State: PUBLISHED
Assigner: GitHub_M
Reserved: 2026-07-07 15:41 UTC
Published: 2026-07-09 22:37 UTC
Last updated: 2026-07-09 22:37 UTC
Primary CWE: CWE-94
CWE-94: Improper Control of Generation of Code ('Code Inject…
Vendor / Product: vim / vim
Sources: cve.org · NVD

Severity & Metrics

8.4 HIGH CVSS 4.0

CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

Affected products (1)

Vendor	Product	Platform	Versions
vim	vim	—	< 9.2.0735

Weakness (CWE)

CWE	Source	Description
CWE-94	cna	CWE-94: Improper Control of Generation of Code ('Code Injection')

CVSS scores (1)

Score	Severity	Version	Source	Vector
8.4	HIGH	4.0	cna	CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

References (2)

https://github.com/vim/vim/security/advisories/GHSA-mf92-v4xw-j45x https://github.com/vim/vim/security/advisories/GHSA-mf92-v4xw-j45x
https://github.com/vim/vim/commit/6b611b0d15603c52ebdad17172b0232b4f65704e https://github.com/vim/vim/commit/6b611b0d15603c52ebdad17172b0232b4f65704e