Vulnerability · Published Feb 14, 2023 · Assigned by GitHub_M

CVE-2023-25576@fastify/multipart vulnerable to DoS due to unlimited number of parts

High 7.5

In plain English

A high-severity resource allocation without limits in fastify-multipart from fastify. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 1.5% (higher than 74% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 3.1)7.5High
Exploit odds (30 days)1.5%top 26.3% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known

Official description

@fastify/multipart is a Fastify plugin to parse the multipart content-type. Prior to versions 7.4.1 and 6.0.1, @fastify/multipart may experience denial of service due to a number of situations in which an unlimited number of parts are accepted. This includes the multipart body parser accepting an unlimited number of file parts, the multipart body parser accepting an unlimited number of field parts, and the multipart body parser accepting an unlimited number of empty parts as field parts. This is fixed in v7.4.1 (for Fastify v4.x) and v6.0.1 (for Fastify v3.x). There are no known workarounds.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
npm@fastify/multipart6.0.1GHSA-hpp2-2cr5-pf6g
npm@fastify/multipart7.4.1GHSA-hpp2-2cr5-pf6g

Affected products (as reported)

VendorProductVersions
fastify fastify-multipart < 6.0.1>= 7.0.0, < 7.4.1

Weakness: CWE-770 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

References