Skip to content
Sign in
5.3 Medium

CVE-2026-12644 Versions of the package ts-deepmerge before 8.0.0 are vulnerable to Uncaught Exception due to the improper handling of…

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.

Affected products and versions

Product Affected versions Fixed in
ts-deepmerge 8.0 earliest → < 8.0.0 8.0.0

Other CVEs of ts-deepmerge

The 2 CVEs of ts-deepmerge →
CVE-2022-25907 The package ts-deepmerge before 2.0.2 are vulnerable to Prototype Pollution due to missing sanitization of the merge… 7.5 High
Track this CVE