{"cve":"CVE-2017-0902","nvd":{"published":"2017-08-31T20:29:00.603","modified":"2026-06-17T00:58:29.760","status":"Modified","description":"RubyGems version 2.6.12 and earlier is vulnerable to a DNS hijacking vulnerability that allows a MITM attacker to force the RubyGems client to download and install gems from a server that the attacker controls.","cvss_v4":null,"cvss_v3":{"version":"3.0","vector":"CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H","score":8.1},"cwes":["CWE-346","CWE-350"],"references":["http://blog.rubygems.org/2017/08/27/2.6.13-released.html","http://www.securityfocus.com/bid/100586","http://www.securitytracker.com/id/1039249","https://access.redhat.com/errata/RHSA-2017:3485","https://access.redhat.com/errata/RHSA-2018:0378"],"products":["canonical:ubuntu_linux","debian:debian_linux","redhat:enterprise_linux_desktop","redhat:enterprise_linux_server","redhat:enterprise_linux_server_aus","redhat:enterprise_linux_server_eus","redhat:enterprise_linux_server_tus","redhat:enterprise_linux_workstation","rubygems:rubygems"],"source":"nvd","synced_at":"2026-10-19T20:46:01.145313090+00:00"},"epss":{"cve":"CVE-2017-0902","score":0.0475,"percentile":0.91879,"date":"2026-10-31"},"kev":null,"osv":[{"id":"GHSA-73w7-6w9g-gc8w","url":"https://osv.dev/vulnerability/GHSA-73w7-6w9g-gc8w","summary":"RubyGems has Origin Validation Error vulnerability","modified":"2024-02-22T05:34:32.603978Z","packages":[{"ecosystem":"RubyGems","name":"rubygems-update","purl":"pkg:gem/rubygems-update","ranges":["<2.6.13"],"fixed":["2.6.13"]}]}],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}