CVE-2021-23807

This affects the package jsonpointer before 5.0.0. A type confusion vulnerability can lead to a bypass of a previous Prototype Pollution fix when the pointer components are arrays.

CVSS v3 5.6 MEDIUM
CVSS v2.0 7.5 HIGH

5.6^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 2.2 / Impact : 3.4

Attack Vector NETWORK

Attack Complexity HIGH

Privileges Required NONE

User Interaction NONE

Confidentiality Impact LOW

Integrity Impact LOW

Availability Impact LOW

Scope UNCHANGED

7.5^/10

CVSS v2.0 : HIGH

Vector : AV:N/AC:L/Au:N/C:P/I:P/A:P

Exploitability : 10.0 / Impact : 6.4

Access Vector NETWORK

Access Complexity LOW

Authentication NONE

Confidentiality Impact PARTIAL

Integrity Impact PARTIAL

Availability Impact PARTIAL

References

Link	Resource
https://github.com/janl/node-jsonpointer/commit/a0345f3550cd9c4d89f33b126390202b89510ad4	Patch Third Party Advisory
https://github.com/janl/node-jsonpointer/pull/51	Patch Third Party Advisory
https://snyk.io/vuln/SNYK-JAVA-ORGWEBJARSNPM-1910273	Exploit Mitigation Patch Third Party Advisory VDB Entry
https://snyk.io/vuln/SNYK-JS-JSONPOINTER-1577288	Exploit Mitigation Patch Third Party Advisory VDB Entry
https://github.com/janl/node-jsonpointer/commit/a0345f3550cd9c4d89f33b126390202b89510ad4	Patch Third Party Advisory
https://github.com/janl/node-jsonpointer/pull/51	Patch Third Party Advisory
https://snyk.io/vuln/SNYK-JAVA-ORGWEBJARSNPM-1910273	Exploit Mitigation Patch Third Party Advisory VDB Entry
https://snyk.io/vuln/SNYK-JS-JSONPOINTER-1577288	Exploit Mitigation Patch Third Party Advisory VDB Entry

Configurations

Configuration 1 (hide)

cpe:2.3:a:janl:jsonpointer:*:*:*:*:*:node.js:*:*

History

05 Mar 2025, 16:24

Type	Values Removed	Values Added
First Time		Janl Janl jsonpointer
CPE	cpe:2.3:a:jsonpointer_project:jsonpointer::::::node.js::*	cpe:2.3:a:janl:jsonpointer::::::node.js::*

Information

Published : 2021-11-03 18:15

Updated : 2025-03-05 16:24

NVD link : CVE-2021-23807

Mitre link : CVE-2021-23807

CVE.ORG link : CVE-2021-23807

JSON object : View

Products Affected

janl

jsonpointer

CWE

CWE-843

Access of Resource Using Incompatible Type ('Type Confusion')

{"id": "CVE-2021-23807", "cveTags": [], "metrics": {"cvssMetricV2": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"version": "2.0", "baseScore": 7.5, "accessVector": "NETWORK", "vectorString": "AV:N/AC:L/Au:N/C:P/I:P/A:P", "authentication": "NONE", "integrityImpact": "PARTIAL", "accessComplexity": "LOW", "availabilityImpact": "PARTIAL", "confidentialityImpact": "PARTIAL"}, "acInsufInfo": false, "impactScore": 6.4, "baseSeverity": "HIGH", "obtainAllPrivilege": false, "exploitabilityScore": 10.0, "obtainUserPrivilege": false, "obtainOtherPrivilege": false, "userInteractionRequired": false}], "cvssMetricV31": [{"type": "Secondary", "source": "report@snyk.io", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 5.6, "attackVector": "NETWORK", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L", "integrityImpact": "LOW", "userInteraction": "NONE", "attackComplexity": "HIGH", "availabilityImpact": "LOW", "privilegesRequired": "NONE", "confidentialityImpact": "LOW"}, "impactScore": 3.4, "exploitabilityScore": 2.2}, {"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 9.8, "attackVector": "NETWORK", "baseSeverity": "CRITICAL", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "NONE", "confidentialityImpact": "HIGH"}, "impactScore": 5.9, "exploitabilityScore": 3.9}]}, "published": "2021-11-03T18:15:08.230", "references": [{"url": "https://github.com/janl/node-jsonpointer/commit/a0345f3550cd9c4d89f33b126390202b89510ad4", "tags": ["Patch", "Third Party Advisory"], "source": "report@snyk.io"}, {"url": "https://github.com/janl/node-jsonpointer/pull/51", "tags": ["Patch", "Third Party Advisory"], "source": "report@snyk.io"}, {"url": "https://snyk.io/vuln/SNYK-JAVA-ORGWEBJARSNPM-1910273", "tags": ["Exploit", "Mitigation", "Patch", "Third Party Advisory", "VDB Entry"], "source": "report@snyk.io"}, {"url": "https://snyk.io/vuln/SNYK-JS-JSONPOINTER-1577288", "tags": ["Exploit", "Mitigation", "Patch", "Third Party Advisory", "VDB Entry"], "source": "report@snyk.io"}, {"url": "https://github.com/janl/node-jsonpointer/commit/a0345f3550cd9c4d89f33b126390202b89510ad4", "tags": ["Patch", "Third Party Advisory"], "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "https://github.com/janl/node-jsonpointer/pull/51", "tags": ["Patch", "Third Party Advisory"], "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "https://snyk.io/vuln/SNYK-JAVA-ORGWEBJARSNPM-1910273", "tags": ["Exploit", "Mitigation", "Patch", "Third Party Advisory", "VDB Entry"], "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "https://snyk.io/vuln/SNYK-JS-JSONPOINTER-1577288", "tags": ["Exploit", "Mitigation", "Patch", "Third Party Advisory", "VDB Entry"], "source": "af854a3a-2127-422b-91ae-364da2661108"}], "vulnStatus": "Modified", "weaknesses": [{"type": "Primary", "source": "nvd@nist.gov", "description": [{"lang": "en", "value": "CWE-843"}]}], "descriptions": [{"lang": "en", "value": "This affects the package jsonpointer before 5.0.0. A type confusion vulnerability can lead to a bypass of a previous Prototype Pollution fix when the pointer components are arrays."}, {"lang": "es", "value": "Esto afecta al paquete jsonpointer versiones anteriores a 5.0.0. Una vulnerabilidad de confusi\u00f3n de tipo puede conllevar a una omisi\u00f3n de una correcci\u00f3n anterior de Contaminaci\u00f3n de Prototipos cuando los componentes de los punteros son matrices"}], "lastModified": "2025-03-05T16:24:40.203", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:janl:jsonpointer:*:*:*:*:*:node.js:*:*", "vulnerable": true, "matchCriteriaId": "320DE2B5-606F-4DC3-B80D-A5A681A1F768", "versionEndExcluding": "5.0.0"}], "operator": "OR"}]}], "sourceIdentifier": "report@snyk.io"}