Description
Vulnerability in the Oracle Java SE, Oracle GraalVM for JDK, Oracle GraalVM Enterprise Edition product of Oracle Java SE (component: JAXP). Supported versions that are affected are Oracle Java SE: 8u503, 8u503-perf, 11.0.32.1, 17.0.20.1, 21.0.12.1, 25.0.4.1, 27; Oracle GraalVM for JDK: 17.0.20.1 and 21.0.12.1; 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, Oracle GraalVM for JDK, Oracle GraalVM Enterprise Edition. Successful attacks of this vulnerability can result in unauthorized access to critical data or complete access to all Oracle Java SE, Oracle GraalVM for JDK, Oracle GraalVM Enterprise Edition accessible data. Note: This vulnerability can be exploited by using APIs in the specified Component, e.g., through a web service which supplies data to the APIs. This vulnerability also applies to Java deployments, typically in clients running sandboxed Java Web Start applications or sandboxed Java applets, that load and run untrusted code (e.g., code that comes from the internet) and rely on the Java sandbox for security. CVSS 3.1 Base Score 5.9 (Confidentiality impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N).
Published: 2026-10-20
Score: 5.9 Medium
EPSS: < 1% Very Low
KEV: No
Impact: Confidentiality Compromise
Action: Immediate Patch
AI Analysis

Impact

Vulnerability in the Java API for XML Processing (JAXP) allows an unauthenticated attacker with network access to inject crafted XML that can cause the target system to expose sensitive information. The flaw leads to unauthorized disclosure of critical data accessed through Oracle Java SE, GraalVM for JDK, and GraalVM Enterprise Edition. The weakness aligns with information exposure (CWE-200) and potential XML external entity processing (CWE-91), resulting in confidentiality loss.

Affected Systems

Impact is limited to Oracle Corporation products: Oracle Java SE releases 8u503, 8u503-perf, 11.0.32.1, 17.0.20.1, 21.0.12.1, 25.0.4.1, and 27; Oracle GraalVM for JDK versions 17.0.20.1 and 21.0.12.1; and Oracle GraalVM Enterprise Edition 21.3.19.1.1. All affected versions support JAXP and can be reached via network protocols such as HTTP, RMI, or SOAP services.

Risk and Exploitability

The CVSS 3.1 base score of 5.9 indicates a moderate severity, with a network access vector, high attack complexity, and no privileges or user interaction required. The EPSS score of less than 1% implies a very low exploitation probability, and the vulnerability is not listed in the CISA KEV catalog, suggesting limited current exploitation. Nevertheless, successful exploitation can result in data leakage from any service that relies on JAXP, making the risk primarily around confidentiality loss rather than system compromise.

Generated by OpenCVE AI on October 28, 2026 at 01:06 UTC.

Remediation

No solution or workaround provided in the CVE record.

OpenCVE Recommended Actions

  • Apply the latest Oracle Java SE, Oracle GraalVM for JDK, and Oracle GraalVM Enterprise Edition patches that address the JAXP flaw (update to any available patched release).
  • Reconfigure all XML parsers to disable external entity resolution and DOCTYPE processing, mitigating XML external entity attacks (CWE‑91) and reducing data exposure.
  • Restrict network exposure of JAXP‑enabled services by limiting inbound connections to trusted hosts, enable encryption for data in transit, and monitor logs for anomalous XML parsing activity to detect potential information disclosure (CWE‑200).

Generated by OpenCVE AI on October 28, 2026 at 01:06 UTC.

Tracking

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Advisories
Source ID Title
Debian DLA Debian DLA DLA-4861-1 openjdk-17 security update
History

Tue, 27 Oct 2026 20:30:00 +0000

Type Values Removed Values Added
Weaknesses CWE-200
Metrics ssvc

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

Fri, 23 Oct 2026 00:45:00 +0000

Type Values Removed Values Added
First Time appeared Oracle oracle Java Se
Vendors & Products Oracle oracle Java Se

Thu, 22 Oct 2026 17:15:00 +0000

Type Values Removed Values Added
Weaknesses CWE-611

Thu, 22 Oct 2026 12:30:00 +0000

Type Values Removed Values Added
Title JAXP Component Vulnerability in Oracle Java SE and GraalVM openjdk: Enhance XPath Expressions (Oracle CPU 2026-10)
Weaknesses CWE-91
References
Metrics threat_severity

None

 threat_severity

Moderate

Thu, 22 Oct 2026 09:45:00 +0000

Type Values Removed Values Added
Title JAXP Component Vulnerability in Oracle Java SE and GraalVM
Weaknesses CWE-611

Tue, 20 Oct 2026 21:30:00 +0000

Type Values Removed Values Added
Description Vulnerability in the Oracle Java SE, Oracle GraalVM for JDK, Oracle GraalVM Enterprise Edition product of Oracle Java SE (component: JAXP). Supported versions that are affected are Oracle Java SE: 8u503, 8u503-perf, 11.0.32.1, 17.0.20.1, 21.0.12.1, 25.0.4.1, 27; Oracle GraalVM for JDK: 17.0.20.1 and 21.0.12.1; 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, Oracle GraalVM for JDK, Oracle GraalVM Enterprise Edition. Successful attacks of this vulnerability can result in unauthorized access to critical data or complete access to all Oracle Java SE, Oracle GraalVM for JDK, Oracle GraalVM Enterprise Edition accessible data. Note: This vulnerability can be exploited by using APIs in the specified Component, e.g., through a web service which supplies data to the APIs. This vulnerability also applies to Java deployments, typically in clients running sandboxed Java Web Start applications or sandboxed Java applets, that load and run untrusted code (e.g., code that comes from the internet) and rely on the Java sandbox for security. CVSS 3.1 Base Score 5.9 (Confidentiality impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N).
First Time appeared Oracle
Oracle graalvm
Oracle graalvm For Jdk
Oracle java Se
CPEs cpe:2.3:a:oracle:graalvm:21.3.19.1.1:*:*:*:enterprise:*:*:*
cpe:2.3:a:oracle:graalvm_for_jdk:17.0.20.1:*:*:*:*:*:*:*
cpe:2.3:a:oracle:graalvm_for_jdk:21.0.12.1:*:*:*:*:*:*:*
cpe:2.3:a:oracle:java_se:11.0.32.1:*:*:*:*:*:*:*
cpe:2.3:a:oracle:java_se:17.0.20.1:*:*:*:*:*:*:*
cpe:2.3:a:oracle:java_se:21.0.12.1:*:*:*:*:*:*:*
cpe:2.3:a:oracle:java_se:25.0.4.1:*:*:*:*:*:*:*
cpe:2.3:a:oracle:java_se:27:*:*:*:*:*:*:*
cpe:2.3:a:oracle:java_se:8u503:*:*:*:*:*:*:*
cpe:2.3:a:oracle:java_se:8u503:*:*:*:enterprise_performance:*:*:*
Vendors & Products Oracle
Oracle graalvm
Oracle graalvm For Jdk
Oracle java Se
References
Metrics cvssV3_1

{'score': 5.9, 'vector': 'CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N'}

Subscriptions

Oracle Graalvm Graalvm For Jdk Java Se Oracle Java Se
cve-icon MITRE

Status: PUBLISHED

Assigner: oracle

Published:

Updated: 2026-10-27T19:37:24.361Z

Reserved: 2026-09-08T21:49:12.409Z

Link: CVE-2026-87290

cve-icon Vulnrichment

Updated: 2026-10-27T19:37:15.453Z

cve-icon NVD

Status : Awaiting Analysis

Published: 2026-10-20T22:20:05.930

Modified: 2026-10-27T20:17:15.383

Link: CVE-2026-87290

cve-icon Redhat

Severity : Moderate

Publid Date: 2026-10-20T21:23:51Z

Links: CVE-2026-87290 - Bugzilla

cve-icon OpenCVE Enrichment

Updated: 2026-10-28T01:15:12Z

Weaknesses
  • CWE-200

    Exposure of Sensitive Information to an Unauthorized Actor

  • CWE-91

    XML Injection (aka Blind XPath Injection)