CVE-2026-91248: Oracle WebCenter Portal information disclosure in Runtime Tools

CVE-2026-91248 · Severity: medium · CVSS 5.3 · Published 2026-10-20

Oracle WebCenter Portal is a component of Oracle Fusion Middleware used for building web portals and collaboration platforms. An unauthenticated attacker can remotely access the affected system via HTTP and read sensitive data without authorization. This allows unauthorized disclosure of confidential portal content accessible to the attacker.

Technologies: Oracle WebCenter Portal. Vendors: Oracle.

Quick answers

Is CVE-2026-91248 exploited in the wild?
No. Junglewise Threat Intelligence has no report of CVE-2026-91248 being exploited in the wild.
How severe is CVE-2026-91248?
Medium severity, with a CVSS score of 5.3, published 20 October 2026.
Which products and versions are affected?
Oracle WebCenter Portal 12.2.1.4.0, 14.1.2.0.0.
Is there a fix for CVE-2026-91248?
No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
How is CVE-2026-91248 attacked?
It is attacked over the network, in a web application.
Am I affected by CVE-2026-91248?
Check whether you run Oracle WebCenter Portal at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

Technical details

An easily exploitable vulnerability in the Runtime Tools component of Oracle WebCenter Portal allows unauthenticated attackers with network access to trigger unauthorized read access to portal data. The attack is network-based over HTTP with no authentication, user interaction, or special configuration required. Exploitation results in confidentiality impact only—no integrity or availability compromise.

Affected products

  • Oracle WebCenter Portal 12.2.1.4.0, 14.1.2.0.0

Timeline

  • 2026-10-20: disclosed

References

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