{"id":"CVE-2026-19078","aliases":["EUVD-2026-56228","GHSA-mx5m-xr46-c5gf"],"status":"published","title":"Ose-oauth-server: oauth-server: open redirect vulnerability enables phishing via unvalidated parameter.","description":"A flaw was found in the oauth-server component. This open redirect vulnerability occurs when the 'then' parameter in the grant approval handler is not properly validated. A remote attacker can craft a malicious URL that, when approved or denied by an authenticated user, redirects them to an attacker-controlled website. This could enable phishing attacks, potentially tricking users into revealing sensitive information.","severity":{"version":"3.1","score":4.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-10","score":0.00357,"percentile":0.29688,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-601"],"published":"2026-08-11T15:34:06Z","modified":"2026-10-23T19:10:00Z","products":[{"vendor":"red hat","product":"red hat openshift container platform 4"}],"references":[{"url":"https://access.redhat.com/security/cve/CVE-2026-19078","tags":["vdb-entry","x_refsource_REDHAT"]},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2511975","tags":["issue-tracking","x_refsource_REDHAT"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-19078"},{"url":"https://github.com/advisories/GHSA-mx5m-xr46-c5gf"}],"sources":{"cve":[{"id":"CVE-2026-19078","title":"Ose-oauth-server: oauth-server: open redirect vulnerability enables phishing via unvalidated parameter.","description":"A flaw was found in the oauth-server component. This open redirect vulnerability occurs when the 'then' parameter in the grant approval handler is not properly validated. A remote attacker can craft a malicious URL that, when approved or denied by an authenticated user, redirects them to an attacker-controlled website. This could enable phishing attacks, potentially tricking users into revealing sensitive information.","status":"published","published":"2026-08-11T15:34:06.094Z","modified":"2026-08-11T15:56:06.058Z","cvss":[{"version":"3.1","score":4.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N","level":"medium","assessor":"cna"}],"cwes":["CWE-601"],"updated_at":"2026-11-02T13:47:17.512524Z"}],"euvd":[{"id":"EUVD-2026-56228","description":"A flaw was found in the oauth-server component. This open redirect vulnerability occurs when the 'then' parameter in the grant approval handler is not properly validated. A remote attacker can craft a malicious URL that, when approved or denied by an authenticated user, redirects them to an attacker-controlled website. This could enable phishing attacks, potentially tricking users into revealing sensitive information.","status":"published","published":"2026-08-11T15:34:06Z","modified":"2026-08-11T15:56:06Z","cvss":[{"version":"3.1","score":4.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N","level":"medium"}],"updated_at":"2026-11-02T18:01:59.926728Z"}],"ghsa":[{"id":"GHSA-mx5m-xr46-c5gf","title":"A flaw was found in the oauth-server component. This open redirect vulnerability occurs when the ...","description":"A flaw was found in the oauth-server component. This open redirect vulnerability occurs when the 'then' parameter in the grant approval handler is not properly validated. A remote attacker can craft a malicious URL that, when approved or denied by an authenticated user, redirects them to an attacker-controlled website. This could enable phishing attacks, potentially tricking users into revealing sensitive information.","status":"published","published":"2026-08-11T18:30:46Z","modified":"2026-08-11T18:30:54Z","cvss":[{"version":"3.1","score":4.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N","level":"medium"}],"cwes":["CWE-601"],"updated_at":"2026-11-02T15:10:18.151039Z"}],"nvd":[{"id":"CVE-2026-19078","description":"A flaw was found in the oauth-server component. This open redirect vulnerability occurs when the 'then' parameter in the grant approval handler is not properly validated. A remote attacker can craft a malicious URL that, when approved or denied by an authenticated user, redirects them to an attacker-controlled website. This could enable phishing attacks, potentially tricking users into revealing sensitive information.","status":"published","published":"2026-08-11T16:17:31.62Z","modified":"2026-10-23T19:10:00.167Z","cvss":[{"version":"3.1","score":4.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N","level":"medium","assessor":"primary"}],"cwes":["CWE-601"],"updated_at":"2026-11-02T14:12:36.499002Z"}]}}