Security Advisory

CVE-2026-12644

CVE vulnerability detail - eXtreme Datacenter Security Operations

Published 2026-06-19 05:00:00

Last updated 2026-06-22 15:03:43

Assigner snyk

CVSS score 6.9

State PUBLISHED

Description

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.

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