Description
Vulnerability in the Oracle Java SE, Oracle GraalVM for JDK, Oracle GraalVM Enterprise Edition product of Oracle Java SE (component: 2D). 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 ability to cause a hang or frequently repeatable crash (complete DOS) of Oracle Java SE, Oracle GraalVM for JDK, Oracle GraalVM Enterprise Edition as well as unauthorized update, insert or delete access to some of Oracle Java SE, Oracle GraalVM for JDK, Oracle GraalVM Enterprise Edition accessible data and unauthorized read access to a subset of 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 7.0 (Confidentiality, Integrity and Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:H).
Published: 2026-10-20
Score: 7 High
EPSS: < 1% Very Low
KEV: No
Impact: Denial of Service and Unauthorized Data Access
Action: Patch Now
AI Analysis

Impact

A flaw exists in the Java 2D component that allows crafted input to corrupt memory, causing the Java Virtual Machine to crash or become unresponsive. The vulnerability also grants the attacker read, update, insert, or delete access to data handled by the affected Java applications. The description states that the flaw is triggered via APIs in the 2D component; it is inferred that insufficient validation of drawing data leads to the memory corruption, as this is not explicitly stated in the input but is consistent with the cited CWE identifiers.

Affected Systems

Affected products include Oracle Java SE versions 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.

Risk and Exploitability

The CVSS v3.1 base score of 7.0 indicates significant impact when successfully exploited. The EPSS score of less than 1% suggests that exploitation is currently unlikely, and the vulnerability is not listed in the CISA KEV catalog, implying no known large‑scale attacks. An attacker must have unauthenticated network access to the exposed 2D API and supply crafted data over one of several protocols; the attack remains technically difficult but feasible for environments that expose these interfaces.

Generated by OpenCVE AI on October 24, 2026 at 00:08 UTC.

Remediation

No solution or workaround provided in the CVE record.

OpenCVE Recommended Actions

  • Apply the latest Oracle CPUOct2026 update package for Oracle Java SE, Oracle GraalVM for JDK, or Oracle GraalVM Enterprise Edition, which fixes the memory‑corruption flaw in the 2D API.
  • Restrict or remove network exposure of the vulnerable 2D API endpoints, eliminating unnecessary services that provide access to the canvas drawing interface.
  • Disable untrusted Java Web Start and applet execution until a patch is applied, and enforce a strict Java security manager or sandbox to limit the execution of code from external sources.

Generated by OpenCVE AI on October 24, 2026 at 00:08 UTC.

Tracking

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

Fri, 23 Oct 2026 21:30:00 +0000

Type Values Removed Values Added
Weaknesses CWE-20
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 graalvm Enterprise Edition
Oracle oracle Java Se
Vendors & Products Oracle graalvm Enterprise Edition
Oracle oracle Java Se

Thu, 22 Oct 2026 14:45:00 +0000

Type Values Removed Values Added
Weaknesses CWE-20
CWE-284
CWE-400

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

Type Values Removed Values Added
Title 2D API Exploit Enables Denial of Service and Unauthorized Data Access in Oracle Java and GraalVM openjdk: Enhance font rendering (Oracle CPU 2026-10)
Weaknesses CWE-787
References
Metrics threat_severity

None

 threat_severity

Important

Wed, 21 Oct 2026 10:30:00 +0000

Type Values Removed Values Added
Title 2D API Exploit Enables Denial of Service and Unauthorized Data Access in Oracle Java and GraalVM
Weaknesses CWE-20
CWE-284
CWE-400

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: 2D). 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 ability to cause a hang or frequently repeatable crash (complete DOS) of Oracle Java SE, Oracle GraalVM for JDK, Oracle GraalVM Enterprise Edition as well as unauthorized update, insert or delete access to some of Oracle Java SE, Oracle GraalVM for JDK, Oracle GraalVM Enterprise Edition accessible data and unauthorized read access to a subset of 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 7.0 (Confidentiality, Integrity and Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:H).
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': 7, 'vector': 'CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:H'}

Subscriptions

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

Status: PUBLISHED

Assigner: oracle

Published:

Updated: 2026-10-23T20:03:53.584Z

Reserved: 2026-09-14T22:10:16.633Z

Link: CVE-2026-91415

cve-icon Vulnrichment

Updated: 2026-10-23T20:03:48.951Z

cve-icon NVD

Status : Awaiting Analysis

Published: 2026-10-20T22:20:44.937

Modified: 2026-10-23T21:17:25.677

Link: CVE-2026-91415

cve-icon Redhat

Severity : Important

Publid Date: 2026-10-20T21:25:50Z

Links: CVE-2026-91415 - Bugzilla

cve-icon OpenCVE Enrichment

Updated: 2026-10-24T00:15:12Z

Weaknesses