CVE-2026-12644
CVE-2026-12644
This page contains facts from public vulnerability sources. Check the original advisory before updating.
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.
CVSS 6.9 · Medium · EPSS 0.5% · Fix available
- Published
- Updated
Stack: node
Affected products and versions
ts-deepmerge
- Versions
- ≥ 0, < 8.0.0: Affected (semver)
Update to 8.0.0
ts-deepmerge npm
- Affected ranges
- SEMVER: < 8.0.0
Update to 8.0.0