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CVE-2025-7338 is a denial-of-service vulnerability in Multer, a Node.js middleware for handling multipart/form-data uploads. Multer versions 1.4.4-lts.1 through versions before 2.0.2 do not properly handle error events produced by the Busboy multipart parser. A malformed multipart upload request can cause an unhandled exception that terminates the Node.js process. The issue affects Multer upload handling, including applications using the single(), array(), or fields() middleware methods.
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No valid public exploits. Mallory filtered out 1 candidate as fakes, detection scripts, or README-only repos.
All candidate exploits were filtered out by Mallory's validation.
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10 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
A previously disclosed high-severity multer denial-of-service vulnerability where unhandled Busboy error events can crash the Node.js process.
A high-severity vulnerability in HPE Telco Network Function Virtualization Orchestrator / Telco Network Director Orchestrator that can be exploited remotely to cause high availability impact (DoS).
A high-severity denial-of-service vulnerability in Multer, the Node.js middleware for handling multipart/form-data, where malformed upload requests can trigger an uncaught exception and crash the Node.js process.
Query your assets running an affected version, and investigate the blast radius.
Every observed campaign linking this CVE to a named adversary.
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Cross-references every affected SKU, including bundled OEM variants.
Community discussion across Reddit, Mastodon, and other social sources.