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CVE-2026-44292

nvd nist
Published: May 13, 2026Modified: Jun 17, 2026

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5.3
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
Exploitability: 3.9 / Impact: 1.4
Source: security-advisories@github.com (Secondary)

Description

protobufjs compiles protobuf definitions into JavaScript (JS) functions. Prior to 7.5.6 and 8.0.2, protobufjs generated message constructors copied enumerable properties from a provided properties object without filtering the __proto__ key. If an application constructed a message from an attacker-controlled plain object, an own enumerable __proto__ property could alter the prototype of that individual message instance. This vulnerability is fixed in 7.5.6 and 8.0.2.

Affected (2)

Protobufjs Project
1 product
Protobufjs
Configuration A
2 vulnerable
Vulnerable SoftwareAffected Versions
Protobufjs
Before 7.5.6
Protobufjs
From 8.0.0 to 8.0.2

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 (1)

Source: security-advisories@github.com
MitigationVendor Advisory

Timeline

No history available yet.