CVE-2026-91248 Vulnerability in the Oracle WebCenter Portal product of Oracle Fusion Middleware (component: Runtime Tools).

Medium 5.3 Published 20 Oct 2026 Updated 29 Oct 2026

Exploited in the wild: Not known
Fix: None listed

What is CVE-2026-91248?

CVE-2026-91248 is a medium-severity vulnerability in Oracle WebCenter Portal, published on 20 Oct 2026.

Official description

Vulnerability in the Oracle WebCenter Portal product of Oracle Fusion Middleware (component: Runtime Tools). Supported versions that are affected are 12.2.1.4.0 and 14.1.2.0.0. Easily exploitable vulnerability allows unauthenticated attacker with network access via HTTP to compromise Oracle WebCenter Portal. Successful attacks of this vulnerability can result in unauthorized read access to a subset of Oracle WebCenter Portal accessible data. CVSS 3.1 Base Score 5.3 (Confidentiality impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N).

Weakness: CWE-200

Which versions are affected by CVE-2026-91248?

How do I fix CVE-2026-91248?

No fix has been published for CVE-2026-91248 yet. Limit exposure of the affected software until one is available.

Is CVE-2026-91248 being exploited?

There is no known exploitation of CVE-2026-91248 in the wild and no public exploit code.

Sources

Also known as GHSA-4rfr-rh22-53qp.