CVE-2026-34043

HighCVSS 7.5/10Last modified Jun 17, 2026

Description

Serialize JavaScript to a superset of JSON that includes regular expressions and functions. Prior to version 7.0.5, there is a Denial of Service (DoS) vulnerability caused by CPU exhaustion. When serializing a specially crafted "array-like" object (an object that inherits from Array.prototype but has a very large length property), the process enters an intensive loop that consumes 100% CPU and hangs indefinitely. This issue has been patched in version 7.0.5.

Metrics

CVSS 3.1 7.5/10CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Weakness enumeration

CWE-400 CWE-834

Affected software

Vendor	Product	Versions
yahoo	serialize-javascript	< 7.0.5

References

Timeline

Published: Mar 31, 2026
Last modified: Jun 17, 2026
NVD status: Analyzed

Related CVEs from 2026

CVE-2026-340447.7Coolify is an open-source and self-hostable tool for managing servers, applications, and databases. Prior to 4.0.0-beta.466, the Logs::mount CVE-2026-340459.1Podman Desktop is a graphical tool for developing on containers and Kubernetes. Prior to 1.26.2, an unauthenticated HTTP server exposed by P CVE-2026-340468.8Langflow is a tool for building and deploying AI-powered agents and workflows. Prior to version 1.5.1, the `_read_flow` helper in `src/backe CVE-2026-340479.9Coolify is an open-source and self-hostable tool for managing servers, applications, and databases. Prior to 4.0.0-beta.471, terminal WebSoc CVE-2026-340489.9Coolify is an open-source and self-hostable tool for managing servers, applications, and databases. Prior to 4.0.0-beta.471, terminal websoc CVE-2026-340493.3Coolify is an open-source and self-hostable tool for managing servers, applications, and databases. From 4.0.0-beta.451 through 4.0.0-beta.4 CVE-2026-34058.1A vulnerability has been found in thinkgem JeeSite up to 5.15.1. The affected element is an unknown function of the component Connection Han CVE-2026-340506.5Coolify is an open-source and self-hostable tool for managing servers, applications, and databases. Prior to 4.0.0-beta.471, the Settings/Up CVE-2026-340515.4OpenEMR is a free and open source electronic health records and medical practice management application. Versions prior to 8.0.0.3 have an i CVE-2026-340525.9LTI JupyterHub Authenticator is a JupyterHub authenticator for LTI. Prior to version 1.6.3, the LTI 1.1 validator stores OAuth nonces in a c CVE-2026-340538.1OpenEMR is a free and open source electronic health records and medical practice management application. Prior to version 8.0.0.3, missing a CVE-2026-340547.8vcpkg is a free and open-source C/C++ package manager. Prior to version 3.6.1#3, vcpkg's Windows builds of OpenSSL set openssldir to a path