{"id":"CVE-2026-87861","revision":"e1712fd62f3e447e94640e57a4127311","records":[{"revision":"e1712fd62f3e447e94640e57a4127311","observedAt":"2026-10-30T12:48:55.053+00:00","statement":{"source":"cve-program","id":"CVE-2026-87861","aliases":[],"title":"cross-origin reuse of a Negotiate connection","description":"When using ambient user credentials, an HTTP request directed to one origin\nmay be dispatched over a connection previously authenticated via Negotiate for\na different origin, leaving the request's intended credentials unused.","state":0,"publishedAt":"2026-10-20T20:09:28.592+00:00","modifiedAt":"2026-10-30T11:55:20.837+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-2026-87861.json","https://curl.se/docs/CVE-2026-87861.html","https://hackerone.com/reports/3972094"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-87861","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-87861","identifiers":["CVE-2026-87861"]},"retained":false,"historicalAffected":[]}],"coverage":[]}