CVE-2026-28422

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.

PUBLISHED Reserved 2026-02-27 | Published 2026-02-27 | Updated 2026-02-28 | Assigner GitHub_M

Problem types

CWE-121: Stack-based Buffer Overflow

Product status

References

www.openwall.com/lists/oss-security/2026/02/27/11

github.com/vim/vim/security/advisories/GHSA-gmqx-prf2-8mwf

github.com/vim/vim/commit/4e5b9e31cb7484ad156f

github.com/vim/vim/releases/tag/v9.2.0078

cve.org (CVE-2026-28422)

nvd.nist.gov (CVE-2026-28422)

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