{"schema":"threatline.record/2","record":{"id":"CVE-2026-83589","aliases":[],"summary":"Oauth-proxy: open redirect via /\\ and /\\t bypass in post-login redirect","details":"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 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.","categories":["Operating systems"],"product":"Red Hat OpenShift Container Platform 4.14","vendor":"Red Hat","ecosystem":null,"affected_ranges":[{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-83589","source_modified_at":"2026-10-23T05:09:14.234Z","fetched_at":"2026-10-23T18:42:43.628194Z","product":"Red Hat OpenShift Container Platform 4.14","vendor":"Red Hat","versions":[{"version":"1791837363","lessThan":"*","versionType":"rpm","status":"unaffected"}],"defaultStatus":"affected"},{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-83589","source_modified_at":"2026-10-23T05:09:14.234Z","fetched_at":"2026-10-23T18:42:43.628194Z","product":"Red Hat OpenShift Container Platform 4.15","vendor":"Red Hat","versions":[{"version":"1791632336","lessThan":"*","versionType":"rpm","status":"unaffected"}],"defaultStatus":"affected"},{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-83589","source_modified_at":"2026-10-23T05:09:14.234Z","fetched_at":"2026-10-23T18:42:43.628194Z","product":"Red Hat OpenShift Container Platform 4.18","vendor":"Red Hat","versions":[{"version":"1790882320","lessThan":"*","versionType":"rpm","status":"unaffected"}],"defaultStatus":"affected"},{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-83589","source_modified_at":"2026-10-23T05:09:14.234Z","fetched_at":"2026-10-23T18:42:43.628194Z","product":"Red Hat OpenShift Container Platform 4.19","vendor":"Red Hat","versions":[{"version":"1790807096","lessThan":"*","versionType":"rpm","status":"unaffected"}],"defaultStatus":"affected"},{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-83589","source_modified_at":"2026-10-23T05:09:14.234Z","fetched_at":"2026-10-23T18:42:43.628194Z","product":"Red Hat OpenShift Container Platform 4.20","vendor":"Red Hat","versions":[{"version":"1790704224","lessThan":"*","versionType":"rpm","status":"unaffected"}],"defaultStatus":"affected"},{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-83589","source_modified_at":"2026-10-23T05:09:14.234Z","fetched_at":"2026-10-23T18:42:43.628194Z","product":"Red Hat OpenShift Container Platform 4.21","vendor":"Red Hat","versions":[{"version":"1790706478","lessThan":"*","versionType":"rpm","status":"unaffected"}],"defaultStatus":"affected"},{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-83589","source_modified_at":"2026-10-23T05:09:14.234Z","fetched_at":"2026-10-23T18:42:43.628194Z","product":"Red Hat OpenShift Container Platform 4.22","vendor":"Red Hat","versions":[{"version":"1790724885","lessThan":"*","versionType":"rpm","status":"unaffected"}],"defaultStatus":"affected"}],"fixed_versions":[],"cvss":6.1,"severity":"Medium","kev":{"listed":false},"epss":{"probability":0.00282,"percentile":0.19699,"score_date":"2026-10-23"},"published_at":"2026-10-01T09:17:43.584Z","modified_at":"2026-10-23T05:09:14.234Z","provenance":[{"source":"CVE List","url":"https://www.cve.org/CVERecord?id=CVE-2026-83589","fetched_at":"2026-10-23T18:42:43.628194Z","source_modified_at":"2026-10-23T05:09:14.234Z"},{"source":"EPSS","url":"https://api.first.org/data/v1/epss?cve=CVE-2026-83589","fetched_at":"2026-10-23T18:42:43.628194Z","source_modified_at":"2026-10-23"}],"sources":["CVE List","EPSS"],"references":[{"source":"CVE List","url":"https://access.redhat.com/errata/RHSA-2026:74380","tags":["vendor-advisory","x_refsource_REDHAT"]},{"source":"CVE List","url":"https://access.redhat.com/errata/RHSA-2026:74383","tags":["vendor-advisory","x_refsource_REDHAT"]},{"source":"CVE List","url":"https://access.redhat.com/errata/RHSA-2026:74429","tags":["vendor-advisory","x_refsource_REDHAT"]},{"source":"CVE List","url":"https://access.redhat.com/errata/RHSA-2026:79039","tags":["vendor-advisory","x_refsource_REDHAT"]},{"source":"CVE List","url":"https://access.redhat.com/errata/RHSA-2026:79169","tags":["vendor-advisory","x_refsource_REDHAT"]},{"source":"CVE List","url":"https://access.redhat.com/errata/RHSA-2026:82785","tags":["vendor-advisory","x_refsource_REDHAT"]},{"source":"CVE List","url":"https://access.redhat.com/errata/RHSA-2026:82813","tags":["vendor-advisory","x_refsource_REDHAT"]},{"source":"CVE List","url":"https://access.redhat.com/security/cve/CVE-2026-83589","tags":["vdb-entry","x_refsource_REDHAT"]},{"source":"CVE List","url":"https://bugzilla.redhat.com/show_bug.cgi?id=2518379","tags":["issue-tracking","x_refsource_REDHAT"]}],"locations":[],"motoko_assessment":{"status":"requires_architecture_review","automatic_remediation":false},"cve_state":"PUBLISHED","cvss_source":"CVE List","ssvc":{"exploitation":"none","automatable":"no","technical_impact":"partial","assessed_at":"2026-10-01T16:11:43.615229Z"},"classification":{"method":"product-first software-layer rules","rules_version":"2.1","matched_on":"product","confidence":"heuristic","reviewed":false},"change_timestamp":"2026-10-23T05:09:14.234Z","content_hash":"4957526ff00ee05aaafaa6ba6415d842d43be37849c7123aa59a4bbfa969d953"}}