CVE-2026-87293 Vulnerability in Oracle Java SE (component: RMI).

Medium 5.4 Published Updated
Exploited in the wild
Not known
Fix
None listed

What is CVE-2026-87293?

CVE-2026-87293 is a medium-severity vulnerability in Oracle Java SE, published on 20 Oct 2026.

Official description

Vulnerability in Oracle Java SE (component: RMI). Supported versions that are affected are Oracle Java SE: 8u503 and 8u503-perf; Oracle GraalVM Enterprise Edition: 21.3.19.1.1. Difficult to exploit vulnerability allows unauthenticated attacker with network access via multiple protocols to compromise Oracle Java SE. While the vulnerability is in Oracle Java SE, attacks may significantly impact additional products (scope change). Successful attacks of this vulnerability can result in unauthorized update, insert or delete access to some of Oracle Java SE accessible data as well as unauthorized read access to a subset of Oracle Java SE accessible data. 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 5.4 (Confidentiality and Integrity impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:L/I:L/A:N).

Weakness: CWE-284

Which versions are affected by CVE-2026-87293?

How do I fix CVE-2026-87293?

No fix has been published for CVE-2026-87293 yet. Limit exposure of the affected software until one is available.

Is CVE-2026-87293 being exploited?

There is no known exploitation of CVE-2026-87293 in the wild and no public exploit code.

Sources

Also known as GHSA-gq49-g2hg-pr63, UBUNTU-CVE-2026-87293.

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