Bug 2563028 (CVE-2026-116132)

Summary: CVE-2026-116132 perl-http-body: HTTP::Body: Denial of Service via incomplete multipart uploads
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerabilityAssignee: Product Security DevOps Team <prodsec-dev>
Status: NEW --- QA Contact:
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Priority: high    
Version: unspecifiedKeywords: Security
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OS: Linux   
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A flaw was found in HTTP::Body. A remote attacker could cause a Denial of Service (DoS) by sending repeated incomplete multipart upload requests. The multipart parser creates a temporary file when a file part begins but fails to track or clean it up if the upload terminates prematurely, allowing an attacker to exhaust available disk space.
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Bug Depends On: 2566090, 2566091, 2566093, 2566095    
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Description OSIDB Bzimport 2026-10-28 17:32:02 UTC 
HTTP::Body versions before 1.23_01 for Perl leave the temporary file of an incomplete multipart upload on disk.

The multipart parser creates a temporary file as soon as a file part starts, but adds it to the upload list only when the part completes. Uploads are only ever deleted from that list, by the cleanup option or by the caller, so a body that ends inside a file part leaves its temporary file where nothing can find it.

A remote attacker can fill the temporary directory by repeating such requests, leaving one file behind for each.