{"id":"CVE-2026-83589","title":"A flaw was found in oauth-proxy","summary":"A flaw was found in oauth-proxy. The application fails to properly validate the destination redirect parameter (`rd`) during post-login redirection. A remote attacker can exploit this vulnerability by enticing a user to follow a speciall…","severity":"medium","cvss":6.1,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N","cwe":["CWE-601"],"vendor":"Red Hat","product":"openshift4/ose-oauth-proxy","affected":["openshift4/ose-oauth-proxy (all versions)","openshift4/ose-oauth-proxy-rhel9 (all versions)"],"published":"2026-10-01","updated":"2026-10-01","sourceUpdated":"2026-10-01T10:17:17.217","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-83589","references":[{"url":"https://access.redhat.com/security/cve/CVE-2026-83589","label":"secalert@redhat.com"},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2518379","label":"secalert@redhat.com"}],"tags":["nvd","cve.org"],"ingestedAt":"2026-10-01T09:41:14.165Z","slug":"CVE-2026-83589","body":"## Overview\n\nA flaw was found in oauth-proxy. The application fails to properly validate the destination redirect parameter (`rd`) during post-login redirection. A remote attacker can exploit this vulnerability by enticing a user to follow a specially crafted link, resulting in the user being redirected to an arbitrary external website after authenticating. This open redirect can be leveraged to conduct phishing attacks or credential theft.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"sunlit","depthScore":34,"depthScoreParts":{"impact":33.6,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}