VULNERABILITY INTELLIGENCE

CVE-2017-16030

CVSS score7.5 HIGH
EPSS probability1.14%
CISA KEVNot currently listed
Published2018-06-04
Last modified2026-06-17
CVSS vectorCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Description

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 useragent string, causing the event loop and server to block. This affects Useragent 2.1.12 and earlier.

Weakness classification

  • CWE-400: Uncontrolled Resource Consumption

Primary references