Bug 2441344

Summary: CVE-2026-26960 nodejs20: node-tar: Arbitrary file read/write via malicious archive hardlink creation [fedora-42]
Product: [Fedora] Fedora Reporter: Vipul Nair <vinair>
Component: nodejs20Assignee: Jan Staněk <jstanek>
Status: CLOSED NOTABUG QA Contact:
Severity: medium Docs Contact:
Priority: medium    
Version: 42CC: aradchen, jstanek, tjuhasz
Target Milestone: ---Keywords: Security, SecurityTracking
Target Release: ---   
Hardware: Unspecified   
OS: Unspecified   
Whiteboard: {"flaws": ["0720ca5e-714d-4bd8-abcf-bfb48451031d"]}
Fixed In Version: Doc Type: ---
Doc Text:
Story Points: ---
Clone Of: Environment:
Last Closed: 2026-02-24 19:09:38 UTC Type: ---
Regression: --- Mount Type: ---
Documentation: --- CRM:
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oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
Embargoed:
Bug Depends On:    
Bug Blocks: 2441253    

Description Vipul Nair 2026-02-20 14:01:37 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.
Comment 1 TomasJuhasz 2026-02-24 19:09:38 UTC 
As with the previous node-tar issues 2431082, this was deemed as not exploitable in our products by the upstream (https://github.com/nodejs/nodejs-dependency-vuln-assessments/issues/266#issuecomment-3946106300) and by our investigation, since all links all already filtered in the used configuration. 

Specifically in this part of the code:https://github.com/npm/pacote/blob/18d36e64a6cc44ac28b7ed2b45e6d2dda4dcf317/lib/fetcher.js#L428-L430.

Therefore I'm closing this tickets as "not a bug".