The Useragent Project maintains a focused parsing library for user-agent string identification and analysis, a narrowly scoped but widely embedded component in web servers, analytics platforms, and client-identification systems. Its observed vulnerability pattern centers on input-handling and resource-consumption issues, including regular expression complexity and uncontrolled resource consumption, which are characteristic of string-parsing code exposed to untrusted browser-supplied input. Current severity, exploitation, and CVE counts are shown alongside this summary.
The number and severity of CVEs published that impact products developed by Useragent Project over time
Signals from CVEs in this vendor scope (2 CVEs).
2 CVEs · Highest risk first
| CVE | Published | CVSS | Risk | KEV | Exploit |
|---|---|---|---|---|---|
CVE-2020-26311HIGH Useragent is a user agent parser for Node.js. All versions as of time of publication contain one or more regular expressions that are vulnerable to Regular Expression Denial of Ser | Oct 26, 2024 | 7.5 | 23 | NO | NO |
CVE-2017-16030HIGH Useragent is used to parse useragent headers. It uses several regular expressions to accomplish this. An attacker could edit their own headers, creating an arbitrarily long userage | Jun 4, 2018 | 7.5 | 22 | NO | NO |
Signals from CVEs in this vendor scope (2 CVEs).
An overview of all social media posts that mention a CVE ID that affects a product developed by Useragent Project.
Media articles that mention a CVE ID that affects a product developed by Useragent Project — matched by CVE ID, not by vendor name.