CVE-2026-87255

Low

Description

Vulnerability in Oracle Java SE (component: Compiler). Supported versions that are affected are Oracle Java SE: 25.0.4.1 and 27. Difficult to exploit vulnerability allows unauthenticated attacker with network access via multiple protocols to compromise Oracle Java SE. Successful attacks of this vulnerability can result in 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 3.7 (Confidentiality impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N).

SeverityLow
CVSS3.7
Exploit probability—
ProductOracle Java SE
PublishedOct 20, 2026
First seenOct 20, 2026

How to fix

Affected products

ProductAffected versionsFixed in
Oracle Corporation Oracle Java SE25.0.4.1, 27—

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