Is CVE-2026-91247 exploited in the wild?

No. Junglewise Threat Intelligence has no report of CVE-2026-91247 being exploited in the wild.

How severe is CVE-2026-91247?

Medium severity, with a CVSS score of 5.9, 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-2026-91247?

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-2026-91247 attacked?

It is attacked over the network, in a web application.

Am I affected by CVE-2026-91247?

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.

CVE-2026-91247: Oracle WebCenter Portal authorization bypass in Runtime Tools

CVE-2026-91247 · Severity: medium · CVSS 5.9 · Published 2026-10-20

Oracle WebCenter Portal is a collaboration and content management platform used within enterprise environments. This vulnerability allows an unauthenticated attacker on the network to bypass authorization controls and modify or delete critical data, or cause partial service disruptions, but only if a legitimate user interacts with a malicious link or request. The attack requires no specialized knowledge and can affect all accessible data within the portal.

Technologies: Oracle WebCenter Portal. Vendors: Oracle.

Quick answers

Is CVE-2026-91247 exploited in the wild?: No. Junglewise Threat Intelligence has no report of CVE-2026-91247 being exploited in the wild.
How severe is CVE-2026-91247?: Medium severity, with a CVSS score of 5.9, 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-2026-91247?: 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-2026-91247 attacked?: It is attacked over the network, in a web application.
Am I affected by CVE-2026-91247?: 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 authorization bypass vulnerability exists in the Runtime Tools component of Oracle WebCenter Portal that allows unauthenticated network-based attackers to perform unauthorized data modification and deletion. The vulnerability has a high Attack Complexity and requires user interaction (UI:R) from a third party; successful exploitation grants integrity and availability impacts. The flaw affects the HTTP interface and has been patched in newer versions.

Affected products

Oracle WebCenter Portal 12.2.1.4.0, 14.1.2.0.0

Timeline

2026-10-20: disclosed

References

https://www.oracle.com/security-alerts/cpuoct2026.html

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