CVE-2026-16150

MEDIUM 6.3

RobinHerbots Inputmask Internal Deep Merge Helper extend.js extendAliases prototype pollution

CVSS Score

6.3

EPSS Score

0.0%

EPSS Percentile

0th

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.

CWE	CWE-1321 CWE-94
Vendor	robinherbots
Product	inputmask
Published	Jul 18, 2026

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CVSS v3 Breakdown

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:X/RL:X/RC:R

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Scope

Confidentiality

Integrity

Availability

Affected Versions

RobinHerbots / Inputmask

5.0.0 5.0.1 5.0.2 5.0.3 5.0.4 5.0.5 5.0.6 5.0.7 5.0.8 5.0.9

References

NVD ↗ CVE.org ↗ EPSS Data ↗

vuldb.com: https://vuldb.com/vuln/379909 vuldb.com: https://vuldb.com/vuln/379909/cti vuldb.com: https://vuldb.com/cve/CVE-2026-16150 vuldb.com: https://vuldb.com/submit/856979 github.com: https://github.com/RobinHerbots/Inputmask/issues/2885 github.com: https://github.com/RobinHerbots/Inputmask/

Credits

🔍 wjm1 (VulDB User) VulDB CNA Team