CVE-2026-28422

Vim has stack-buffer-overflow in build_stl_str_hl()

State: Published
Severity: 2.2 Low
Published: Feb 27, 2026
Updated: Mar 2, 2026
Reserved: Feb 27, 2026

Description

Vim is an open source, command line text editor. Prior to version 9.2.0078, a stack-buffer-overflow occurs in `build_stl_str_hl()` when rendering a statusline with a multi-byte fill character on a very wide terminal. Version 9.2.0078 patches the issue.

Scores

CVSS	Score	Vector	Source
3.1	2.2 Low	CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:U/C:N/I:L/A:N	GitHub_M

Weaknesses

CWE-121 Stack-based Buffer Overflow

Affected Products

Product	Versions
vimvim	< 9.2.0078Affected

References

https://github.com/vim/vim/security/advisories/GHSA-gmqx-prf2-8mwf
https://github.com/vim/vim/commit/4e5b9e31cb7484ad156f
https://github.com/vim/vim/releases/tag/v9.2.0078
http://www.openwall.com/lists/oss-security/2026/02/27/11

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