CVE-2026-12644
Versions of the package ts-deepmerge before 8.0.0 are vulnerable to Uncaught Exception due to the improper handling of built-in Object.prototype methods (such as toString, valueOf). When user-controlled input contains these keys with non-function values, the resulting merged object becomes broken — any string context operation throws a TypeError, crashing the application.
Published:Jun 19, 2026
Last Modified:Jun 24, 2026
EPS:Jun 19, 2026
EPSS Score:0.00308
CVSS Score:5.3
Affected Products
Vendor
Product
Action
Vendor
Voodoocreation
Product
Ts-deepmerge
Voodoocreation
Ts-deepmerge
Exploits
No exploit reference
Common Weakness Enumeration
Common Attack Pattern Enumeration and Classification (CAPEC)
No CAPEC recorded yet
Common Vulnerability Scoring System
Attack Vector
Network
Adjacent
Local
Physical
Privileges Required
None
Low
High
User Interaction
None
Required
Scope
Unchanged
Changed
Confidentiality
None
Low
High
Integrity
None
Low
High
Availability
None
Low
High
