Bug 2500679 (CVE-2026-53486)

Summary: CVE-2026-53486 decompress: @xhmikosr/decompress: Decompress: Arbitrary file read/write via crafted archive extraction
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerabilityAssignee: Product Security DevOps Team <prodsec-dev>
Status: NEW --- QA Contact:
Severity: high Docs Contact:
Priority: high    
Version: unspecifiedCC: aschwart, aszczucz, boliveir, drichtar, gparvin, mposolda, pjindal, rhaigner, rmartinc, ssilvert, sthorger, vmuzikar
Target Milestone: ---Keywords: Security
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Hardware: All   
OS: Linux   
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A flaw was found in the decompress package for Node.js. A remote attacker can exploit this vulnerability by crafting a malicious archive. When the archive is extracted, it can create files and links outside the intended directory, leading to unauthorized reading or writing of files. This is due to improper handling of hardlink and symlink entries, insufficient path containment checks, and failure to remove setuid, setgid, or sticky bits from file modes. This can result in high confidentiality and integrity impacts.
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oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
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Bug Depends On: 2500841, 2500842    
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Description OSIDB Bzimport 2026-07-14 21:04:46 UTC 
The decompress package for Node.js extracts archives. Prior to 10.2.1 and 11.1.3, archive extraction can create files and links outside the target directory. When extracting an archive to a directory, a crafted archive can read or write files outside that directory because hardlink and symlink entries are created without checking where targets point, path containment used a string prefix comparison, and file modes failed to remove setuid, setgid, or sticky bits. This issue is fixed in @xhmikosr/decompress versions 10.2.1 and 11.1.3.