CVE Catalog

CVE-2026-91373

MediumCVSS 5.3
Published: Updated: Translated: NVD NIST

Exploitation Probability (EPSS)

Low risk
0.39%

31th percentile - higher than 31% of all known CVEs

Summary

Vulnerability in the JSSE component of Oracle Java SE allows an unauthenticated network attacker via TLS to easily exploit it. This can cause a partial denial of service (partial DoS) of Oracle Java SE.

Risk Assessment

An attacker could cause partial unavailability of Java services, potentially disrupting applications relying on TLS.

Recommendation

Update Oracle Java SE, GraalVM for JDK, and GraalVM Enterprise Edition to versions with security fixes.

Other vulnerabilities in Oracle Java SE

See all
Original NVD description (English source)

Vulnerability in Oracle Java SE (component: JSSE). 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; Oracle GraalVM for JDK: 17.0.20.1 and 21.0.12.1; Oracle GraalVM Enterprise Edition: 21.3.19.1.1. Easily exploitable vulnerability allows unauthenticated attacker with network access via TLS to compromise Oracle Java SE. Successful attacks of this vulnerability can result in unauthorized ability to cause a partial denial of service (partial DOS) of Oracle Java SE. 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 5.3 (Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L).

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