CVE-2026-91417 Vulnerability in the Oracle Java SE, Oracle GraalVM Enterprise Edition product of Oracle Java SE (component: CORBA).

Medium 5.3 Published Updated
Exploited in the wild
Not known
Fix
None listed

What is CVE-2026-91417?

CVE-2026-91417 is a medium-severity vulnerability in Oracle GraalVM Enterprise Edition, published on 20 Oct 2026.

Official description

Vulnerability in the Oracle Java SE, Oracle GraalVM Enterprise Edition product of Oracle Java SE (component: CORBA). Supported versions that are affected are Oracle Java SE: 8u503 and 8u503-perf; Oracle GraalVM Enterprise Edition: 21.3.19.1.1. Easily exploitable vulnerability allows unauthenticated attacker with network access via multiple protocols to compromise Oracle Java SE, Oracle GraalVM Enterprise Edition. Successful attacks of this vulnerability can result in unauthorized ability to cause a partial denial of service (partial DOS) of Oracle Java SE, Oracle GraalVM Enterprise Edition. Note: This vulnerability can only be exploited by supplying data to APIs in the specified Component without using Untrusted Java Web Start applications or Untrusted Java applets, such as through a web service. CVSS 3.1 Base Score 5.3 (Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L).

Weakness: CWE-400

Which versions are affected by CVE-2026-91417?

How do I fix CVE-2026-91417?

No fix has been published for CVE-2026-91417 yet. Limit exposure of the affected software until one is available.

Is CVE-2026-91417 being exploited?

There is no known exploitation of CVE-2026-91417 in the wild and no public exploit code.

Sources

Also known as GHSA-23j9-f78g-rw77, UBUNTU-CVE-2026-91417.

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