High severity · published Feb 11, 2022
CVE-2021-23597
This affects the package fastify-multipart before 5.3.1
7.5
CVSS
2%
EPSS
No
On KEV
Description
This affects the package fastify-multipart before 5.3.1. By providing a name=constructor property it is still possible to crash the application. **Note:** This is a bypass of CVE-2020-8136 (https://security.snyk.io/vuln/SNYK-JS-FASTIFYMULTIPART-1290382).
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
None
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)2.0% · higher than 81% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
FA
Fastify-multipart · Fastify
before 5.3.1 · source: NVD
Affected product
FA
Fastify-multipart
Fastify
More from Fastify-multipart
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CVE-2026-18549
@fastify/multipart vulnerable to Denial of Service via aborted upload after fileSize limit
7.5
CVE-2023-25576
@fastify/multipart is a Fastify plugin to parse the multipart content-type
7.5
CVE-2020-8136
Prototype pollution vulnerability in fastify-multipart < 1.0.5 allows an attacker to crash fastify applications parsing multipart requests by sending a specially crafted request