{"schema":"threatline.record/2","record":{"id":"CVE-2026-105221","aliases":[],"summary":"Gist RubyGem before 6.1.0 Disabled TLS Certificate Verification","details":"The gist RubyGem before 6.1.0 contains an improper certificate validation vulnerability that allows on-path attackers to intercept HTTPS traffic because http_connection in lib/gist.rb sets VERIFY_NONE. Attackers can present any certificate to read or modify GitHub API traffic, stealing OAuth tokens and login credentials to read and modify the victim's gists.","categories":["Unclassified"],"product":"gist","vendor":"defunkt","ecosystem":null,"affected_ranges":[{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-105221","source_modified_at":"2026-10-05T20:28:43.344Z","fetched_at":"2026-10-23T18:52:38.922436Z","product":"gist","vendor":"defunkt","versions":[{"version":"4.0.0","lessThan":"6.1.0","status":"affected","versionType":"semver"}],"defaultStatus":"unaffected"}],"fixed_versions":[{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-105221","source_modified_at":"2026-10-05T20:28:43.344Z","fetched_at":"2026-10-23T18:52:38.922436Z","package":{"name":"gist","ecosystem":null},"version":"6.1.0","basis":"first unaffected version stated in the CVE record"}],"cvss":9.1,"severity":"Critical","kev":{"listed":false},"epss":{"probability":0.00178,"percentile":0.07042,"score_date":"2026-10-23"},"published_at":"2026-10-04T22:31:47.153Z","modified_at":"2026-10-05T20:28:43.344Z","provenance":[{"source":"CVE List","url":"https://www.cve.org/CVERecord?id=CVE-2026-105221","fetched_at":"2026-10-23T18:52:38.922436Z","source_modified_at":"2026-10-05T20:28:43.344Z"},{"source":"EPSS","url":"https://api.first.org/data/v1/epss?cve=CVE-2026-105221","fetched_at":"2026-10-23T18:42:43.628194Z","source_modified_at":"2026-10-23"}],"sources":["CVE List","EPSS"],"references":[{"source":"CVE List","url":"https://github.com/defunkt/gist/issues/373","tags":["issue-tracking"]},{"source":"CVE List","url":"https://github.com/defunkt/gist","tags":["product"]},{"source":"CVE List","url":"https://github.com/defunkt/gist/blob/v6.0.0/lib/gist.rb#L466-L468","tags":["technical-description"]},{"source":"CVE List","url":"https://github.com/defunkt/gist/commit/07ccc1a6d46e9d36f0e85d0b1c5d795890ae6bcf","tags":["patch"]},{"source":"CVE List","url":"https://www.vulncheck.com/advisories/gist-rubygem-before-6.1.0-disabled-tls-certificate-verification","tags":["third-party-advisory"]}],"locations":[],"motoko_assessment":{"status":"requires_architecture_review","automatic_remediation":false},"cve_state":"PUBLISHED","cvss_source":"CVE List","ssvc":{"exploitation":"none","automatable":"no","technical_impact":"partial","assessed_at":"2026-10-05T19:18:30.694491Z"},"classification":{"method":"product-first software-layer rules","rules_version":"2.1","matched_on":null,"confidence":"unknown","reviewed":false},"change_timestamp":"2026-10-05T20:28:43.344Z","content_hash":"3ce3bec649b298b08449fc93a889ab212b62b51f531bb9bf6d8953c6388e9f31"}}