{"cve":"CVE-2019-17268","nvd":{"published":"2020-02-07T14:15:11.343","modified":"2026-06-17T02:23:36.647","status":"Modified","description":"The omniauth-weibo-oauth2 gem 0.4.6 for Ruby, as distributed on RubyGems.org, included a code-execution backdoor inserted by a third party. Versions through 0.4.5, and 0.5.1 and later, are unaffected.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","score":9.8},"cwes":["CWE-94"],"references":["https://diff.coditsu.io/diffs/09a05c37-1b34-49e1-ac94-d4dda40d1ad1#d2h-971595","https://github.com/beenhero/omniauth-weibo-oauth2/issues/36","https://diff.coditsu.io/diffs/09a05c37-1b34-49e1-ac94-d4dda40d1ad1#d2h-971595","https://github.com/beenhero/omniauth-weibo-oauth2/issues/36"],"products":["omniauth-weibo-oauth2_project:omniauth-weibo-oauth2"],"source":"nvd","synced_at":"2026-10-19T21:02:53.949909883+00:00"},"epss":{"cve":"CVE-2019-17268","score":0.02437,"percentile":0.84285,"date":"2026-10-31"},"kev":null,"osv":[{"id":"GHSA-vr22-43gj-rx3f","url":"https://osv.dev/vulnerability/GHSA-vr22-43gj-rx3f","summary":"omniauth-weibo-oauth2 included a code-execution backdoor inserted by a third party","modified":"2023-11-08T04:01:23.253873Z","packages":[{"ecosystem":"RubyGems","name":"omniauth-weibo-oauth2","purl":"pkg:gem/omniauth-weibo-oauth2","ranges":[">=0.4.6 <0.5.1"],"fixed":["0.5.1"]}]}],"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."]}