GHSA-pcqq-5962-hvcw – user_agent_parser

Package

Manager: gem
Name: user_agent_parser
Vulnerable Version: >=0 <2.6.0

Severity

Level: High

CVSS v3.1: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L/E:U/RL:O/RC:R

CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N

EPSS: N/A pctlN/A

Details

Denial of Service in uap-core when processing crafted User-Agent strings ### Impact Some regexes are vulnerable to regular expression denial of service (REDoS) due to overlapping capture groups. This allows remote attackers to overload a server by setting the User-Agent header in an HTTP(S) request to maliciously crafted long strings. ### Patches Please update `uap-ruby` to &gt;= v2.6.0 ### For more information https://github.com/ua-parser/uap-core/security/advisories/GHSA-cmcx-xhr8-3w9p Reported in `uap-core` by Ben Caller @bcaller

Metadata

Created: 2020-03-10T18:02:49Z
Modified: 2025-05-22T17:12:55Z
Source: https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2020/03/GHSA-pcqq-5962-hvcw/GHSA-pcqq-5962-hvcw.json
CWE IDs: []
Alternative ID: N/A
Finding: F211
Auto approve: 1