CVE-2021-23509

Prototype Pollution

View on CVE.org

Published Nov 3, 2021 CVSS 3.1 · 5.6 Medium EPSS 1.8% KEV · Not listed

Description

This affects the package json-ptr before 3.0.0. A type confusion vulnerability can lead to a bypass of CVE-2020-7766 when the user-provided keys used in the pointer parameter are arrays.

Affected Products

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions

n/a

json-ptr

affected

Version	Status	Constraints
`unspecified`	affected	< 3.0.0

Configuration 1 [-]

cpe:2.3:a:json-ptr_project:json-ptr:*:*:*:*:*:*:*:*

No data.

No data available yet.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

Source	ID	Title
EUVD	EUVD-2021-2324	This affects the package json-ptr before 3.0.0. A type confusion vulnerability can lead to a bypass of CVE-2020-7766 when the user-provided keys used in the pointer parameter are arrays.
Github GHSA	GHSA-8gwj-8hxc-285w	Prototype Pollution in json-ptr

Metrics

No CVSS v4.0

Attack Vector Network

Attack Complexity High

Privileges Required None

Scope Unchanged

Confidentiality Impact Low

Integrity Impact Low

Availability Impact Low

User Interaction None

No CVSS v3.0

Access Vector Network

Access Complexity Low

Authentication None

Confidentiality Impact Partial

Integrity Impact Partial

Availability Impact Partial

This CVE is not in the KEV list.

Exploit prediction score: 1.8% (1.828% probability within 30 days)

Key SSVC decision points have not yet been added.

References

Link	Providers
https://github.com/flitbit/json-ptr%23security-vulnerabilities-resolved
https://github.com/flitbit/json-ptr/commit/5dc458fbad1c382a2e3ca6d62e66ede3d92849ca
https://github.com/flitbit/json-ptr/pull/42
https://snyk.io/vuln/SNYK-JAVA-ORGWEBJARSNPM-1767165
https://snyk.io/vuln/SNYK-JS-JSONPTR-1577291

History

No history.

Subscriptions

Json-ptr Project Json-ptr

Weaknesses

CWE-843

Sources

CVE record Updated: Sep 16, 2024, 8:32 PM

Status: PUBLISHED
Assigner: snyk
Published: Nov 3, 2021, 5:20 PM
Updated: Sep 16, 2024, 8:32 PM
Reserved: Jan 8, 2021, 12:00 AM

View source JSON

Vulnrichment No data

No data.

NVD Updated: Jun 17, 2026, 3:38 AM

Status: Modified
Published: Nov 3, 2021, 6:15 PM
Modified: Jun 17, 2026, 3:38 AM

View source JSON

Red Hat No data

No data.

OpenCVE enrichment No data

No data.

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