High severity · published Feb 11, 2022
CVE-2021-23597
Denial of Service (DoS)
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 ·
before 5.3.1 · source: vendor, NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2021-23597
CVE.org
https://www.cve.org/CVERecord?id=CVE-2021-23597
Patch
https://github.com/fastify/fastify-multipart/commit/a70dc7059a794589bd4fe066453141fc609e6066
Release Notes
https://github.com/fastify/fastify-multipart/releases/tag/v5.3.1
Exploit
https://snyk.io/vuln/SNYK-JS-FASTIFYMULTIPART-2395480