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CVE-2023-26920

nvd nist
Published: Dec 12, 2023Modified: Jun 17, 2026

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6.5
Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Exploitability: 2.8 / Impact: 3.6
Source: NVD

Description

fast-xml-parser before 4.1.2 allows __proto__ for Prototype Pollution.

Affected (1)

Naturalintelligence
1 product
Fast Xml Parser
Configuration A
1 vulnerable
Vulnerable SoftwareAffected Versions
Fast Xml Parser
Before 4.1.2

Related CWEs

CWE-1321
Improperly Controlled Modification of Object Prototype Attributes ('Prototype Pollution')
The product receives input from an upstream component that specifies attributes that are to be initialized or updated in an object, but it does not properly control modifications of attributes of the object prototype.

References (6)

Source: cve@mitre.org
Exploit
Source: cve@mitre.org
Patch
Source: cve@mitre.org
Third Party Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
Exploit
Source: af854a3a-2127-422b-91ae-364da2661108
Patch
Source: af854a3a-2127-422b-91ae-364da2661108
Third Party Advisory

Timeline

No history available yet.