CVE-2026-5079

The CVE-2026-5079 issue affects the Multer library (versions 1.0.0–2.1.1 and 3.0.0-alpha.1). The vulnerability arises from the append-field dependency parsing bracket notation in field names with no limit on nesting depth, which can cause the allocation of deeply nested object structures and cons...

CVE-2026-5038

MULTER CVE-2026-5038 affects multer’s diskStorage: versions 2.0.0-alpha.1–2.1.1 and 3.0.0-alpha.1 are vulnerable. The root cause is that Readable.pipe() does not propagate the stream destroy signal to the underlying fs.WriteStream, allowing aborted or malformed multipart uploads to leave orphaned...

CVE-2026-2359

Multer (Node.js middleware for multipart/form-data) is affected by a DoS vulnerability in versions prior to 2.1.0. The issue arises when a sender drops the connection during file upload, potentially exhausting resources. The advisory recommends upgrading to version 2.1.0, with no published workar...

CVE-2026-3520

Multer, a Node.js middleware for multipart/form-data, has a DoS vulnerability in versions prior to 2.1.1. Malformed requests can trigger uncontrolled recursion and a stack overflow, impacting availability. The recommended fix is to upgrade to version 2.1.1; no workarounds are provided in the desc...

CVE-2026-3304

Multer (Node.js middleware for handling multipart/form-data) is affected by CVE-2026-3304: versions prior to 2.1.0 are vulnerable to a Denial of Service via malformed requests, potentially exhausting resources. The issue is addressed by upgrading to version 2.1.0; no public workarounds are docume...

CVE-2026-77037

multer is a Node.js middleware for handling multipart/form-data uploads. In version 2.2.0 , when a disk-backed upload is aborted or truncated before the write stream finishes, the disk storage engine removes the visible file but fails to close the underlying write file descriptor , leaving a dele...

CVE-2026-82333

multer , a Node.js middleware for handling multipart/form-data, is vulnerable to a remotely triggerable denial of service (CVSS 7.5 HIGH). An attacker can send a small multipart request containing two specially crafted text field names: a large numeric array index in the first field allocates a m...

CVE-2026-77078

multer , a popular Node.js middleware for handling multipart/form-data, is vulnerable to a remote denial-of-service in all versions before 2.3.0 . A small multipart request containing two specially crafted text field names triggers an uncaught RangeError (Invalid array length) : the first field a...

CVE-2026-77063

multer , a Node.js middleware for handling multipart/form-data, contains a race condition in its file stream handling that is triggered when an application uses an asynchronous fileFilter together with the fileSize limit . An attacker can exploit this to cause a file that exceeds the configured s...