Resource exhaustion in Faisalman Ua-parser-js
CVE-2026-48125
UAParser.js is a JavaScript library to detect browsers, operating systems, CPUs, and devices from user-agent data. From 2.0.1 until 2.0.10, a regular expression denial-of-service vulnerability exists when using the Client Hints API. By sen…
Vulnerability class: DoS (Denial of Service)
CVSS v3 metric
CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L.
Affected products
- Faisalman Ua-parser-js — versions >= 2.0.1, < 2.0.10
Weakness classification (CWE)
References
- security-advisories@github.com (x_refsource_MISC)
- security-advisories@github.com (x_refsource_MISC)
- security-advisories@github.com (x_refsource_CONFIRM)
Frequently asked questions
- What is CVE-2026-48125?
- CVE-2026-48125 is a medium-severity vulnerability in Faisalman Ua-parser-js, classified under Uncontrolled Resource Consumption. CVSS score: 5.3/10. Published 2026-07-14.
- How severe is CVE-2026-48125?
- Medium severity. CVSS v3 base score is 5.3 out of 10.