{"id":"CVE-2026-83646","title":"Url redirection to untrusted site ('open redirect') in Active Directory Federation Services (AD FS) allows an authorized attacker to perform spoofing over a network.","summary":"Url redirection to untrusted site ('open redirect') in Active Directory Federation Services (AD FS) allows an authorized attacker to perform spoofing over a network.","severity":"medium","cvss":4.8,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N","cwe":["CWE-601"],"published":"2026-10-13","updated":"2026-10-13","sourceUpdated":"2026-10-13T19:29:52.750","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-83646","references":[{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-83646","label":"secure@microsoft.com"}],"tags":["nvd"],"ingestedAt":"2026-10-13T19:43:29.074Z","slug":"CVE-2026-83646","body":"## Overview\n\nUrl redirection to untrusted site ('open redirect') in Active Directory Federation Services (AD FS) allows an authorized attacker to perform spoofing over a network.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"sunlit","depthScore":26,"depthScoreParts":{"impact":26.4,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}