{"id":"CVE-2026-86411","revision":"17208c0950524496a6a79931c09ff52b","records":[{"revision":"17208c0950524496a6a79931c09ff52b","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-86411","aliases":[],"title":"FTP connection reuse inherits client-certificate","description":"An `ftp://` transfer configured with `CURLUSESSL_NONE` can reuse a pooled FTP\ncontrol connection that a previous easy handle upgraded with `STARTTLS` and\nauthenticated using a client certificate. The second handle performs neither a\nnew TLS handshake nor a new FTP login, so the server continues to authorize it\nunder the first handle's certificate identity.","state":0,"publishedAt":"2026-10-20T20:02:03.431+00:00","modifiedAt":"2026-10-20T20:02:03.431+00:00","affected":[{"ecosystem":"Vendor product","name":"curl","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"vendor\": \"curl\",\n                    \"product\": \"curl\",\n                    \"versions\": [\n                        {\n                            \"version\": \"8.21.0\",\n                            \"status\": \"affected\",\n                            \"lessThanOrEqual\": \"8.21.0\",\n                            \"versionType\": \"semver\"\n                        }\n                    ],\n                    \"defaultStatus\": \"unaffected\"\n                }"}],"metrics":[],"references":["https://curl.se/docs/CVE-2026-86411.json","https://curl.se/docs/CVE-2026-86411.html","https://hackerone.com/reports/3973190"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-86411","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-86411","identifiers":["CVE-2026-86411"]},"retained":false,"historicalAffected":[]}],"coverage":[]}