Bug 2443481 (CVE-2026-28418)

Summary: CVE-2026-28418 vim: Vim: Information disclosure via heap-based buffer overflow in Emacs-style tags file parsing
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerabilityAssignee: Product Security DevOps Team <prodsec-dev>
Status: NEW --- QA Contact:
Severity: medium Docs Contact:
Priority: medium    
Version: unspecifiedCC: adudiak, kshier, stcannon, teagle, yguenane
Target Milestone: ---Keywords: Security
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Hardware: All   
OS: Linux   
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A flaw was found in Vim. When processing a specially crafted Emacs-style tags file, a heap-based buffer overflow out-of-bounds read vulnerability allows an attacker to trick Vim into reading up to 7 bytes beyond its allocated memory boundary. This could lead to information disclosure or potentially affect the integrity of the application.
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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: 2443494, 2443497, 2443790    
Bug Blocks:    

Description OSIDB Bzimport 2026-02-27 23:02:38 UTC 
Vim is an open source, command line text editor. Prior to version 9.2.0074, a heap-based buffer overflow out-of-bounds read exists in Vim's Emacs-style tags file parsing logic. When processing a malformed tags file, Vim can be tricked into reading up to 7 bytes beyond the allocated memory boundary. Version 9.2.0074 fixes the issue.