{"id":"CVE-2026-86413","revision":"1dd6188306eb4d428b20112d291a7b92","records":[{"revision":"1dd6188306eb4d428b20112d291a7b92","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-86413","aliases":[],"title":"Negotiate credentials sent to redirected origin","description":"When using an *ambient user* in a first transfer doing Negotiate\nauthentication and asked to follow redirects, curl could pass on its\ncredential details to an unrelated second origin when asked to redirect there.","state":0,"publishedAt":"2026-10-20T20:06:11.699+00:00","modifiedAt":"2026-10-20T20:06:11.699+00:00","affected":[{"ecosystem":"Vendor product","name":"curl","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"vendor\": \"curl\",\n                    \"product\": \"curl\",\n                    \"versions\": [\n                        {\n                            \"version\": \"8.22.0\",\n                            \"status\": \"affected\",\n                            \"lessThanOrEqual\": \"8.22.0\",\n                            \"versionType\": \"semver\"\n                        },\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-2026-86413.json","https://curl.se/docs/CVE-2026-86413.html","https://hackerone.com/reports/3993549"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-86413","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-86413","identifiers":["CVE-2026-86413"]},"retained":false,"historicalAffected":[]}],"coverage":[]}