Bug 2443475 (CVE-2026-28422)

Summary: CVE-2026-28422 vim: Vim: Integrity impact due to stack-buffer-overflow via wide terminal statusline rendering
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerabilityAssignee: Product Security DevOps Team <prodsec-dev>
Status: NEW --- QA Contact:
Severity: low Docs Contact:
Priority: low    
Version: unspecifiedCC: adudiak, dwojewod, kshier, stcannon, teagle, timothy.a.meader, yguenane
Target Milestone: ---Keywords: Security
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Hardware: All   
OS: Linux   
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A flaw was found in Vim, an open-source command-line text editor. A local user could exploit a stack-buffer-overflow vulnerability in the `build_stl_str_hl()` function by rendering a statusline with a multi-byte fill character on a very wide terminal. This could lead to an integrity impact, where data might be modified.
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oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
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Bug Depends On: 2443488, 2443492, 2443790    
Bug Blocks:    

Description OSIDB Bzimport 2026-02-27 23:02:15 UTC
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.