CVE-2026-16150 MEDIUM

CVE-2026-16150: RobinHerbots Inputmask Internal Deep Merge Helper extend.js extendAliases prototype pollution

Vendor Robinherbots
Product Inputmask
Weakness CWE-1321
Published July 18, 2026
Last update July 20, 2026

CVSS base score

5.3/10
Attack vector Network
Attack complexity Low
Privileges required Low
User interaction None
Confidentiality
Integrity

CVSS vector

CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:X

What the vulnerability does

01Description

A vulnerability was found in RobinHerbots Inputmask up to 5.0.9. Affected by this issue is the function extendDefaults/extendDefinitions/extendAliases in the library lib/dependencyLibs/extend.js of the component Internal Deep Merge Helper. The manipulation results in improperly controlled modification of object prototype attributes. The attack may be performed from remote. The project was informed of the problem early through an issue report but has not responded yet.

Key dates

02Disclosure timeline

July 18, 2026 CVE published
July 20, 2026 Record updated