CVE-2026-46968
Analyzed Analyzed - Analysis Complete

Denial of Service in Oracle Java SE

Publication date: 2026-07-21

Last updated on: 2026-07-31

Assigner: Oracle

Description
Vulnerability in Oracle Java SE (component: JSSE). Supported versions that are affected are Oracle Java SE: 8u491, 8u491-perf, 11.0.31, 17.0.19, 21.0.11, 25.0.3, 26.0.1; Oracle GraalVM for JDK: 17.0.19 and 21.0.11; Oracle GraalVM Enterprise Edition: 21.3.18. Difficult to exploit vulnerability allows unauthenticated attacker with network access via TLS to compromise Oracle Java SE. Successful attacks of this vulnerability can result in unauthorized creation, deletion or modification access to critical data or all 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 5.9 (Integrity impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N).

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Meta Information

Published
2026-07-21
Last Modified
2026-07-31
Generated
2026-08-11
AI Q&A
2026-07-22
EPSS Evaluated
2026-08-09
NVD
CVE-2026-46968
EUVD
EUVD-2026-46467

Affected Vendors & Products

Showing 17 associated CPEs
Vendor Product Version / Range
oracle jre 1.8.0
oracle jre 11.0.31
oracle jre 17.0.19
oracle jre 21.0.11
oracle jre 25.0.3
oracle jre 26.0.1
oracle jre 1.8.0
oracle jdk 1.8.0
oracle jdk 11.0.31
oracle jdk 17.0.19
oracle jdk 21.0.11
oracle jdk 25.0.3
oracle jdk 26.0.1
oracle jdk 1.8.0
oracle graalvm 21.3.18
oracle graalvm_for_jdk 17.0.19
oracle graalvm_for_jdk 21.0.11

Helpful Resources

Exploitability

CWE
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KEV
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CWE ID Description
CWE-284 The product does not restrict or incorrectly restricts access to a resource from an unauthorized actor.

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Executive Summary

This is a vulnerability in Oracle Java SE's JSSE component affecting multiple versions. It allows an unauthenticated attacker with network access via TLS to potentially modify critical data in Oracle Java SE. The attack requires supplying data to specific APIs without using untrusted Java Web Start or applets.

Detection Guidance

Detection requires checking installed Java versions against affected releases. Use commands like 'java -version' or 'where java' to identify installed versions. Compare against Oracle Java SE 8u491, 11.0.31, 17.0.19, 21.0.11, 25.0.3, 26.0.1 and GraalVM versions 17.0.19, 21.0.11, 21.3.18.

Impact Analysis

If exploited, this vulnerability could allow unauthorized modification of critical data within Oracle Java SE environments. This could lead to data corruption, integrity breaches, or unauthorized changes to sensitive information processed by affected Java applications.

Compliance Impact

This vulnerability allows unauthorized modification of critical data, which could lead to violations of data integrity requirements in GDPR and HIPAA. Unauthorized changes to personal or health data would breach compliance with these regulations.

Mitigation Strategies

Apply the latest Oracle Java SE security patches immediately. Disable TLS if not required or restrict network access to Java services. Monitor Oracle security advisories for updates and consider upgrading to non-affected versions.

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