CVE Catalog

CVE-2026-91394

MediumCVSS 5.9
Published: Updated: Translated: NVD NIST

Exploitation Probability (EPSS)

Low risk
0.33%

25th percentile - higher than 25% of all known CVEs

Summary

Vulnerability in the Networking component of Oracle Java SE and Oracle GraalVM for JDK. A difficult-to-exploit flaw allows an unauthenticated attacker with network access to gain unauthorized access to critical data or all Java-accessible data.

Risk Assessment

Sensitive data processed by Java applications may be leaked, posing a serious risk to information security.

Recommendation

Update Oracle Java SE and Oracle GraalVM for JDK to versions containing the security fix.

Other vulnerabilities in Oracle Java SE

See all
Original NVD description (English source)

Vulnerability in the Oracle Java SE, Oracle GraalVM for JDK product of Oracle Java SE (component: Networking). Supported versions that are affected are Oracle Java SE: 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. Difficult to exploit vulnerability allows unauthenticated attacker with network access via multiple protocols to compromise Oracle Java SE, Oracle GraalVM for JDK. 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 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).

Vulnerability data from NVD (NIST) · CISA KEV · EPSS