CVE-2026-19078
Full vulnerability record from the local CVENow database.
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
MEDIUM
CVSS score
4.3
(v3.1)
Vulnerability status
Awaiting Analysis
Source identifier
Published
2026-08-11 16:17:31.620000
Last modified
2026-10-23 19:10:00.167000
View original CVE JSON
{
"id": "CVE-2026-19078",
"sourceIdentifier": "[email protected]",
"published": "2026-08-11T16:17:31.620",
"lastModified": "2026-10-23T19:10:00.167",
"vulnStatus": "Awaiting Analysis",
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "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."
},
{
"lang": "es",
"value": "Se encontró una falla en el componente oauth-server. Esta vulnerabilidad de redirección abierta ocurre cuando el parámetro ’then’ en el gestor de aprobación de concesión no se valida correctamente. Un atacante remoto puede crear una URL maliciosa que, cuando es aprobada o denegada por un usuario autenticado, los redirige a un sitio web controlado por el atacante. Esto podría permitir ataques de phishing, engañando potencialmente a los usuarios para que revelen información sensible."
}
],
"affected": [
{
"source": "[email protected]",
"affectedData": [
{
"vendor": "Red Hat",
"product": "Red Hat OpenShift Container Platform 4",
"defaultStatus": "affected",
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"packageName": "openshift4/ose-oauth-server-rhel8",
"cpes": [
"cpe:/a:redhat:openshift:4"
]
},
{
"vendor": "Red Hat",
"product": "Red Hat OpenShift Container Platform 4",
"defaultStatus": "affected",
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"packageName": "openshift4/ose-oauth-server-rhel9",
"cpes": [
"cpe:/a:redhat:openshift:4"
]
}
]
}
],
"metrics": {
"cvssMetricV31": [
{
"source": "[email protected]",
"type": "Primary",
"cvssData": {
"version": "3.1",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N",
"baseScore": 4.3,
"baseSeverity": "MEDIUM",
"attackVector": "NETWORK",
"attackComplexity": "LOW",
"privilegesRequired": "NONE",
"userInteraction": "REQUIRED",
"scope": "UNCHANGED",
"confidentialityImpact": "NONE",
"integrityImpact": "LOW",
"availabilityImpact": "NONE"
},
"exploitabilityScore": 2.8,
"impactScore": 1.4
}
],
"ssvcV203": [
{
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"ssvcData": {
"timestamp": "2026-08-11T15:54:56.603573Z",
"id": "CVE-2026-19078",
"options": [
{
"exploitation": "none"
},
{
"automatable": "no"
},
{
"technicalImpact": "partial"
}
],
"role": "CISA Coordinator",
"version": "2.0.3"
}
}
]
},
"weaknesses": [
{
"source": "[email protected]",
"type": "Primary",
"description": [
{
"lang": "en",
"value": "CWE-601"
}
]
}
],
"references": [
{
"url": "https://access.redhat.com/security/cve/CVE-2026-19078",
"source": "[email protected]"
},
{
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2511975",
"source": "[email protected]"
}
]
}