CVE-2026-87293

openjdk: Enhance RMI connections (Oracle CPU 2026-10)

Published Oct 20, 2026 CVSS 3.1 · 5.4 Medium EPSS < 1% KEV · Not listed
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).

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

Source ID Title
Ubuntu USN Ubuntu USN USN-9009-1 OpenJDK 8 vulnerabilities
History
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
Weaknesses CWE-284
Type Values Removed Values Added
First Time appeared Oracle oracle Java Se
Vendors & Products Oracle oracle Java Se
Type Values Removed Values Added
Weaknesses CWE-284
CWE-287
Type Values Removed Values Added
Title Remote RMI API Vulnerability Enabling Unauthorized Data Modification and Read in Oracle Java SE openjdk: Enhance RMI connections (Oracle CPU 2026-10)
Weaknesses CWE-924
References
Metrics threat_severity

None

threat_severity

Moderate

Type Values Removed Values Added
Title Remote RMI API Vulnerability Enabling Unauthorized Data Modification and Read in Oracle Java SE
Weaknesses CWE-284
CWE-287
Type Values Removed Values Added
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).
First Time appeared Oracle
Oracle java Se
CPEs cpe:2.3:a:oracle:java_se:8u503:*:*:*:*:*:*:*
cpe:2.3:a:oracle:java_se:8u503:*:*:*:enterprise_performance:*:*:*
Vendors & Products Oracle
Oracle java Se
References
Metrics cvssV3_1

{'score': 5.4, 'vector': 'CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:L/I:L/A:N'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
oracle
Published
Updated
Oct 27, 2026, 6:58 PM
Reserved
Sep 8, 2026, 9:49 PM
Status
Awaiting Analysis
Published
Oct 20, 2026, 10:20 PM
Modified
Oct 27, 2026, 7:17 PM
Severity
Moderate
Public date
Oct 20, 2026, 9:23 PM