Dashboard / CVE-2026-48125

CVE-2026-48125

MEDIUM
MEDIUM Priority: 0.03 BB Relevance: 71/100
Published: 2026-07-14 Modified: 2026-10-24 First seen: 2026-10-29 Status: active

Attack Surface

Network Low Complexity No Auth No Interaction

CVSS Vector Breakdown

AV: Network
AC: Low
PR: None
UI: None
S: Unchanged
C: None
I: None
A: Low

Description

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 sending a crafted Sec-CH-UA-Model header to an application that calls UAParser(headers).withClientHints(), an attacker can cause excessive CPU time due to catastrophic backtracking in the device regex because Client Hints values are copied without the UA_MAX_LENGTH limit used for User-Agent values. This issue is fixed in version 2.0.10.

Weakness Classification (2)

Affected Software (1)

VendorProductVersion
ua-parser-js_project ua-parser-js 2.0.1 – 2.0.10

References & Advisories (3)

Bug Bounty Relevance

71 / 100
✓ Network accessible
✓ No authentication
✓ Low complexity
✓ No user interaction

CVSS Score

5.3 / 10.0 v3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

EPSS — Exploitation Probability

0.52%
Raw Score 0.005230
Percentile 44.3%
Date 2026-10-29

EPSS Trend

2026-10-29
0.00523
2026-10-28
0.00523

Intelligence Sources

nvd ref →

External Links