CVE-2026-48125

A flaw was found in UAParser.js, a JavaScript library for detecting client information. A remote attacker can exploit this vulnerability by sending a specially crafted Sec-CH-UA-Model header when the application uses the Client Hints API. This can cause excessive CPU usage due to a regular...

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 sending a crafted Sec-CH-UA-Model header to an application th...

DEBIAN-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 sending a crafted Sec-CH-UA-Model header to an application th...

UBUNTU-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 sending a crafted Sec-CH-UA-Model header to an application th...

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 sending a crafted Sec-CH-UA-Model header to an application th...

CVE-2026-48125 UAParser.js: Unbounded `Sec-CH-UA-Model` parsing can trigger ReDoS in `withClientHints()`

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 th...

CVE-2026-48125 UAParser.js: Unbounded `Sec-CH-UA-Model` parsing can trigger ReDoS in `withClientHints()`

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 th...

Regular Expression Denial of Service (ReDoS)

Overview org.webjars.npm:ua-parser-js is a WebJar for ua-parser-js Affected versions of this package are vulnerable to Regular Expression Denial of Service ReDoS via the withClientHints function. An attacker can cause excessive CPU consumption by sending a specially crafted Sec-CH-UA-Model header...

UAParser.js: Unbounded `Sec-CH-UA-Model` parsing can trigger ReDoS in `withClientHints()`

Summary A regular expression denial-of-service ReDoS vulnerability has been discovered in ua-parser-js when using the Client Hints API. By sending a crafted Sec-CH-UA-Model header to an application that calls UAParserheaders.withClientHints, an attacker can cause the parser to spend excessive CPU...

GHSA-9H5V-PFQQ-X599 UAParser.js: Unbounded `Sec-CH-UA-Model` parsing can trigger ReDoS in `withClientHints()`

Summary A regular expression denial-of-service ReDoS vulnerability has been discovered in ua-parser-js when using the Client Hints API. By sending a crafted Sec-CH-UA-Model header to an application that calls UAParserheaders.withClientHints, an attacker can cause the parser to spend excessive CPU...

PT-2026-49551

Name of the Vulnerable Software and Affected Versions UAParser.js versions 2.0.1 through 2.0.9 Description A regular expression denial-of-service ReDoS exists when using the Client Hints API. An attacker can cause excessive CPU consumption and a denial-of-service condition in server-side...

CVE-2022-23496

Yet Another UserAgent Analyzer Yauaa is a java library that tries to parse and analyze the useragent string and extract as many relevant attributes as possible. Applications using the Client Hints analysis feature introduced with 7.0.0 can crash because the Yauaa library throws an...

The vulnerability of the CheckUser extension of the software environment for implementing MediaWiki’s hypertext environment allows a violator to cause a service failure.

The vulnerability of the CheckUser extension of the MediaWiki software environment relates to the use of the URL address rest.php/checkuser/v0/useragentclienthints/revision/, which is used to store any number of lines in cuuseragentclienthints. Exploiting this vulnerability could allow a maliciou...

CVE-2023-45367

An issue was discovered in the CheckUser extension for MediaWiki before 1.35.12, 1.36.x through 1.39.x before 1.39.5, and 1.40.x before 1.40.1. A user can use a rest.php/checkuser/v0/useragent-clienthints/revision/ URL to store an arbitrary number of rows in cuuseragentclienthints, leading to a...

Denial Of Service (DoS)

yauaa is vulnerable to denial of service. The vulnerability exists due to ClientHintsAnalyzer.java improperly handling client hints, allowing an attacker to crash the application through the ArrayIndexOutOfBoundsException by passing a malicious user-agent string when using the client hint analysi...

CVE-2022-23496

Yet Another UserAgent Analyzer Yauaa is a java library that tries to parse and analyze the useragent string and extract as many relevant attributes as possible. Applications using the Client Hints analysis feature introduced with 7.0.0 can crash because the Yauaa library throws an...

Design/Logic Flaw

Yet Another UserAgent Analyzer Yauaa is a java library that tries to parse and analyze the useragent string and extract as many relevant attributes as possible. Applications using the Client Hints analysis feature introduced with 7.0.0 can crash because the Yauaa library throws an...

CVE-2022-23496 A crafted list can trigger a ArrayIndexOutOfBoundsException in Yauaa

Yet Another UserAgent Analyzer Yauaa is a java library that tries to parse and analyze the useragent string and extract as many relevant attributes as possible. Applications using the Client Hints analysis feature introduced with 7.0.0 can crash because the Yauaa library throws an...

CVE-2022-23496 A crafted list can trigger a ArrayIndexOutOfBoundsException in Yauaa

Yet Another UserAgent Analyzer Yauaa is a java library that tries to parse and analyze the useragent string and extract as many relevant attributes as possible. Applications using the Client Hints analysis feature introduced with 7.0.0 can crash because the Yauaa library throws an...

GHSA-C4PM-63CG-9J7H Yauaa vulnerable to ArrayIndexOutOfBoundsException triggered by a crafted Sec-Ch-Ua-Full-Version-List

Impact Applications using the Client Hints analysis feature introduced with 7.0.0 can crash because the Yauaa library throws an ArrayIndexOutOfBoundsException. Applications that do not use this feature are not affected. Patches Upgrade to 7.9.0 Workarounds Catch and discard any exceptions from...