Bug 2443350 (CVE-2026-2359)

Summary: CVE-2026-2359 multer: Multer: Denial of Service via dropped file upload connections
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: abarbaro, alizardo, dbosanac, dschmidt, erezende, gotiwari, jcantril, jchui, jgrulich, jhe, jhorak, jlanda, jreimann, kshier, ktsao, mdessi, mrizzi, mvyas, nboldt, pcattana, psrna, rojacob, simaishi, smcdonal, stcannon, teagle, tpopela, yguenane
Target Milestone: ---Keywords: Security
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Hardware: All   
OS: Linux   
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A flaw was found in Multer, a Node.js middleware for handling `multipart/form-data`. A remote attacker can exploit this vulnerability by intentionally dropping a connection during a file upload. This can lead to a Denial of Service (DoS) due to resource exhaustion on the affected system.
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oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
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Description OSIDB Bzimport 2026-02-27 16:01:51 UTC
Multer is a node.js middleware for handling `multipart/form-data`. A vulnerability in Multer prior to version 2.1.0 allows an attacker to trigger a Denial of Service (DoS) by dropping connection during file upload, potentially causing resource exhaustion. Users should upgrade to version 2.1.0 to receive a patch. No known workarounds are available.