{"action":"Upgrade ruby to 2.7.4-r0 or later.","affected":[{"fixed":"2.7.4-r0","introduced":"2.7.0"}],"component":"ruby","cve_ids":[],"ecosystem":"Alpine","ecosystem_qualifier":"Alpine:v3.21","exploited":false,"fixed_versions":["2.7.4-r0"],"id":"tcs_01M5ND73HVRAPMXYHP8J4PRCSV","modified_at":"2026-10-23T17:17:56.186434118Z","published_at":"2021-07-13T13:15:09.243Z","references":["https://osv.dev/vulnerability/ALPINE-CVE-2021-31810","https://security.alpinelinux.org/vuln/CVE-2021-31810"],"severity":{"label":"medium","score":5.8},"sources":[{"source":"osv","source_id":"ALPINE-CVE-2021-31810#Alpine:v3.21/ruby","url":"https://osv.dev/vulnerability/ALPINE-CVE-2021-31810"}],"summary":"An issue was discovered in Ruby through 2.6.7, 2.7.x through 2.7.3, and 3.x through 3.0.1. A malicious FTP server can use the PASV response to trick Net::FTP into connecting back to a given IP address"}