Home/CVE/This affects the package fastify-multipart before 5.3.1. By providing a name=constructor property it is still possible t
CVE

CVE-2021-23597

This affects the package fastify-multipart before 5.3.1. By providing a name=constructor property it is still possible t

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).

HIGH · CVSS 7.5 EPSS 0.00405
Act now
  • Public exploit or PoC is available
  • CVSS base score ≥ 7.0
Sigma rules0 YARA rules0
⬡

Weakness Classification

CWE-1321Improperly Controlled Modification of Object Prototype Attributes ('Prototype Pollution')
▤

Affected Products & Versions

1
fastify fastify-multipart< 5.3.1
▤

Affected Packages

1
Language-ecosystem packages (from OSV) tied to this CVE, with the version that fixes it - the dependency-level detail NVD doesn’t carry.
npm fastify-multipart HIGH fixed in 5.3.1
⚠

Public Exploits & PoCs

1
pocsnyk.io · SNYK-JS-FASTIFYMULTIPART-2395480snyk.io
▣

Scoring & Timeline

7.5
HIGH · CVSS v3.1 · report@snyk.io
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD11 Feb 2022 · 05:15 PM
CVSS VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
🔗

References & Sources

2
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
https://github.com/fastify/fastify-multipart/commit/a70dc7059a794589bd4fe066453141fc609e6066PatchThird Party Advisory
https://github.com/fastify/fastify-multipart/releases/tag/v5.3.1Release NotesThird Party Advisory
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