Bug 2494938

Summary: CVE-2026-53432 fzf: fzf: Denial of Service via Integer Overflow in FuzzyMatchV2 function [fedora-all]
Product: [Fedora] Fedora Reporter: Jon Weiser <jweiser>
Component: fzfAssignee: Elliott Sales de Andrade <quantum.analyst>
Status: CLOSED NOTABUG QA Contact: Fedora Extras Quality Assurance <extras-qa>
Severity: medium Docs Contact:
Priority: medium    
Version: rawhideCC: epel-packagers-sig, go-sig, quantum.analyst
Target Milestone: ---Keywords: Security, SecurityTracking
Target Release: ---   
Hardware: Unspecified   
OS: Unspecified   
Whiteboard: {"flaws": ["a6e72757-c94b-433c-813f-8e43fbfc0e7f"]}
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Last Closed: 2026-08-04 03:23:09 UTC Type: ---
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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:    
Bug Blocks: 2494892    

Description Jon Weiser 2026-06-30 14:19:45 UTC 
Disclaimer: Community trackers are created by Red Hat Product Security team on a best effort basis. Package maintainers are required to ascertain if the flaw indeed affects their package, before starting the update process.

fzf is vulnerable to Integer Overflow leading to crash in FuzzyMatchV2 function. When input line length is approximately 2,200,000 bytes and pattern length is 999 bytes, the product overflows. The Go runtime detects the invalid slice bounds and terminates the process immediately with a non-recoverable panic.

This issue was fixed in version 0.73.1.
Comment 1 Elliott Sales de Andrade 2026-08-04 03:23:09 UTC 
We were on 0.73.1 a month before this was filed.