CVE-2026-54737

@phun-ky/defaults-deep is a library like lodash defaultsDeep with array preservation and no lodash dependency. Prior to 2.0.5, defaultsDeep() recursively merges user-supplied objects without filtering proto, constructor, and prototype, allowing properties to be written to Object.prototype. This issue is fixed in version 2.0.5.

CVSS v3 7.3 HIGH

7.3^/10

CVSS v3 : HIGH

Vector :

Exploitability : 3.9 / Impact : 3.4

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact LOW

Integrity Impact LOW

Availability Impact LOW

Scope UNCHANGED

References

Link	Resource
https://github.com/phun-ky/defaults-deep/commit/807dba930f8718f9126cad59d949b8fd3539b059
https://github.com/phun-ky/defaults-deep/pull/49
https://github.com/phun-ky/defaults-deep/releases/tag/2.0.5
https://github.com/phun-ky/defaults-deep/security/advisories/GHSA-mj3g-7xcc-x4vh

Configurations

No configuration.

History

23 Oct 2026, 23:10

Type	Values Removed	Values Added
Summary		(es) @phun-ky/defaults-deep es una biblioteca similar a lodash defaultsDeep con preservación de arrays y sin dependencia de lodash. Antes de la versión 2.0.5, defaultsDeep() fusiona recursivamente objetos proporcionados por el usuario sin filtrar proto, constructor y prototype, permitiendo que las propiedades se escriban en Object.prototype. Este problema está solucionado en la versión 2.0.5.

Information

Published : 2026-07-31 18:17

Updated : 2026-10-23 23:10

NVD link : CVE-2026-54737

Mitre link : CVE-2026-54737

CVE.ORG link : CVE-2026-54737

JSON object : View

Products Affected

No product.

CWE

CWE-1321

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

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