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CVE-2021-3918

Good to know:

Date: November 12, 2021

json-schema is vulnerable to Improperly Controlled Modification of Object Prototype Attributes ('Prototype Pollution')

Language: JS

Severity Score

9.8

Related Resources (9)

Url: https://access.redhat.com/security/cve/CVE-2021-3918

Url: https://github.com/kriszyp/json-schema

Url: https://github.com/kriszyp/json-schema/commit/b62f1da1ff5442f23443d6be6a92d00e65cba93a

Url: https://huntr.dev/bounties/bb6ccd63-f505-4e3a-b55f-cd2662c261a9

Url: https://github.com/kriszyp/json-schema/commit/f6f6a3b02d667aa4ba2d5d50cc19208c4462abfa

Url: https://github.com/kriszyp/json-schema/commit/22f146111f541d9737e832823699ad3528ca7741

Url: https://nvd.nist.gov/vuln/detail/CVE-2021-3918

Url: https://lists.debian.org/debian-lts-announce/2022/12/msg00013.html

Url: https://www.mend.io/vulnerability-database/CVE-2021-3918

Severity Score

9.8

Weakness Type (CWE)

Improperly Controlled Modification of Object Prototype Attributes ('Prototype Pollution')

CWE-1321

Improperly Controlled Modification of Dynamically-Determined Object Attributes

CWE-915

CVSS v3.1

Base Score:	9.8
Attack Vector (AV):	NETWORK
Attack Complexity (AC):	LOW
Privileges Required (PR):	NONE
User Interaction (UI):	NONE
Scope (S):	UNCHANGED
Confidentiality (C):	HIGH
Integrity (I):	HIGH
Availability (A):	HIGH

CVSS v2

Base Score:	7.5
Access Vector (AV):	NETWORK
Access Complexity (AC):	LOW
Authentication (AU):	NONE
Confidentiality (C):	PARTIAL
Integrity (I):	PARTIAL
Availability (A):	PARTIAL
Additional information:

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