CVE-2026-12644

MediumCVSS 5.3/10Last modified Jun 23, 2026

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.

Metrics

CVSS 3.1 5.3/10CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

Weakness enumeration

CWE-248

Affected software

Vendor	Product	Versions
n/a	ts-deepmerge	< 8.0.0

References

Timeline

Published: Jun 19, 2026
Last modified: Jun 23, 2026
NVD status: Deferred

Related CVEs from 2026

CVE-2026-126458.8A Missing Authorization vulnerability in Ivanti Neurons for ITSM before 2026.2 allows a remote authenticated attacker to execute arbitrary c CVE-2026-126468.8A Missing Authorization vulnerability in Ivanti Neurons for ITSM before 2026.2 allows a remote authenticated attacker to execute arbitrary c CVE-2026-126478.8A Missing Authorization vulnerability in Ivanti Neurons for ITSM before 2026.2 allows a remote authenticated attacker to execute arbitrary c CVE-2026-126488.8A Deserialization of Untrusted Data vulnerability in Ivanti Neurons for ITSM before 2026.2 allows a remote authenticated attacker to execute CVE-2026-12655.3IBM InfoSphere Information Server 11.7.0.0 through 11.7.1.6 is vulnerable to writing of sensitive Information in a log file.CVE-2026-126508.8A Deserialization of Untrusted Data vulnerability in Ivanti Neurons for ITSM before 2026.2 allows a remote authenticated attacker to execute CVE-2026-126518.8A Deserialization of Untrusted Data vulnerability in Ivanti Neurons for ITSM before 2026.2 allows a remote authenticated attacker to execute CVE-2026-126545.3The Payment Plugins for Stripe WooCommerce plugin for WordPress is vulnerable to authorization bypass in all versions up to, and including, CVE-2026-126558.8A security issue exists within 1732E ArmorBlock® I/O, where an unauthenticated attacker can change the device's webserver password without v CVE-2026-126568.7A denial-of-service security issue exists in the affected product and version. The security issue stems from improper handling of network st CVE-2026-126575.3The LatePoint – Calendar Booking Plugin for Appointments and Events plugin for WordPress is vulnerable to Insecure Direct Object Reference i CVE-2026-126598.7A denial-of-service security issue exists in the affected products. The security issue stems from improper handling of exceptional condition