CVE-2021-27292

Regular Expression Denial of Service (ReDoS) in ua-parser-js

Description

ua-parser-js >= 0.7.14, fixed in 0.7.24, uses a regular expression which is vulnerable to denial of service. If an attacker sends a malicious User-Agent header, ua-parser-js will get stuck processing it for an extended period of time.

Patch Available

Fix available through Seal Security.  
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Fix without upgrading

Score

Severity

Ecosystem

JavaScript

Publish Date

May 6, 2021

Modified Date

November 7, 2023

Score Vector

Affected Versions