Linux Distros Unpatched Vulnerability : CVE-2026-91403

critical Nessus Plugin ID 370527

Synopsis

The Linux/Unix host has one or more packages installed with a vulnerability that the vendor indicates will not be patched.

Description

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available.

- Vulnerability in the Oracle Java SE, Oracle GraalVM for JDK, Oracle GraalVM Enterprise Edition product of Oracle Java SE (component: JSSE). Supported versions that are affected are Oracle Java SE: 8u511, 8u511-perf, 11.0.33, 17.0.21, 21.0.13, 25.0.5, 27.0.1; Oracle GraalVM for JDK: 17.0.21 and 21.0.13; Oracle GraalVM Enterprise Edition: 21.3.20. Easily exploitable 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 creation, deletion or modification access to critical data or all Oracle Java SE, Oracle GraalVM for JDK, Oracle GraalVM Enterprise Edition accessible data as well as 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. (CVE-2026-91403)

Note that Nessus relies on the presence of the package as reported by the vendor.

Solution

There is no known solution at this time.

Plugin Details

Severity: Critical

ID: 370527

File Name: unpatched_CVE_2026_91403.nasl

Version: 1.4

Type: Local

Agent: unix

Family: Misc.

Published: 10/22/2026

Updated: 10/23/2026

Supported Sensors: Agentless Assessment, Frictionless Assessment Agent, Frictionless Assessment AWS, Frictionless Assessment Azure, Nessus Agent, Tenable Cloud Security, Tenable Self-Hosted Container Security, Nessus

Risk Information

VPR

Risk Factor: High

Score: 7.1

Percentile: 98.16

CVSS v2

Risk Factor: Medium

Base Score: 6.4

Temporal Score: 5.8

Vector: CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:N

CVSS Score Source: CVE-2026-91403

CVSS v3

Risk Factor: Critical

Base Score: 9.1

Temporal Score: 8.6

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

Temporal Vector: CVSS:3.0/E:P/RL:U/RC:C

Vulnerability Information

CPE: cpe:/o:canonical:ubuntu_linux:16.04:-:lts, cpe:/o:canonical:ubuntu_linux:18.04:-:lts, cpe:/o:canonical:ubuntu_linux:20.04:-:lts, cpe:/o:canonical:ubuntu_linux:22.04:-:lts, cpe:/o:canonical:ubuntu_linux:24.04:-:lts, cpe:/o:canonical:ubuntu_linux:26.04:-:lts, cpe:/o:centos:centos:7, cpe:/o:centos:centos:8, cpe:/o:debian:debian_linux:12.0, cpe:/o:debian:debian_linux:13.0, cpe:/o:debian:debian_linux:14.0, cpe:/o:redhat:enterprise_linux:10, cpe:/o:redhat:enterprise_linux:7, cpe:/o:redhat:enterprise_linux:8, cpe:/o:redhat:enterprise_linux:9, p-cpe:/a:canonical:ubuntu_linux:openjdk-13, p-cpe:/a:canonical:ubuntu_linux:openjdk-16, p-cpe:/a:canonical:ubuntu_linux:openjdk-17-crac, p-cpe:/a:canonical:ubuntu_linux:openjdk-17, p-cpe:/a:canonical:ubuntu_linux:openjdk-18, p-cpe:/a:canonical:ubuntu_linux:openjdk-21-crac, p-cpe:/a:canonical:ubuntu_linux:openjdk-21, p-cpe:/a:canonical:ubuntu_linux:openjdk-25, p-cpe:/a:canonical:ubuntu_linux:openjdk-27, p-cpe:/a:canonical:ubuntu_linux:openjdk-8, p-cpe:/a:canonical:ubuntu_linux:openjdk-9, p-cpe:/a:canonical:ubuntu_linux:openjdk-lts, p-cpe:/a:centos:centos:java-1.8.0-openjdk-accessibility-debug, p-cpe:/a:centos:centos:java-1.8.0-openjdk-accessibility-fastdebug, p-cpe:/a:centos:centos:java-1.8.0-openjdk-accessibility-slowdebug, p-cpe:/a:centos:centos:java-1.8.0-openjdk-accessibility, p-cpe:/a:centos:centos:java-1.8.0-openjdk-debug, p-cpe:/a:centos:centos:java-1.8.0-openjdk-demo-debug, p-cpe:/a:centos:centos:java-1.8.0-openjdk-demo-fastdebug, p-cpe:/a:centos:centos:java-1.8.0-openjdk-demo-slowdebug, p-cpe:/a:centos:centos:java-1.8.0-openjdk-demo, p-cpe:/a:centos:centos:java-1.8.0-openjdk-devel-debug, p-cpe:/a:centos:centos:java-1.8.0-openjdk-devel-fastdebug, p-cpe:/a:centos:centos:java-1.8.0-openjdk-devel-slowdebug, p-cpe:/a:centos:centos:java-1.8.0-openjdk-devel, p-cpe:/a:centos:centos:java-1.8.0-openjdk-fastdebug, p-cpe:/a:centos:centos:java-1.8.0-openjdk-headless-debug, p-cpe:/a:centos:centos:java-1.8.0-openjdk-headless-fastdebug, p-cpe:/a:centos:centos:java-1.8.0-openjdk-headless-slowdebug, p-cpe:/a:centos:centos:java-1.8.0-openjdk-headless, p-cpe:/a:centos:centos:java-1.8.0-openjdk-javadoc-debug, p-cpe:/a:centos:centos:java-1.8.0-openjdk-javadoc-zip-debug, p-cpe:/a:centos:centos:java-1.8.0-openjdk-javadoc-zip, p-cpe:/a:centos:centos:java-1.8.0-openjdk-javadoc, p-cpe:/a:centos:centos:java-1.8.0-openjdk-slowdebug, p-cpe:/a:centos:centos:java-1.8.0-openjdk-src-debug, p-cpe:/a:centos:centos:java-1.8.0-openjdk-src-fastdebug, p-cpe:/a:centos:centos:java-1.8.0-openjdk-src-slowdebug, p-cpe:/a:centos:centos:java-1.8.0-openjdk-src, p-cpe:/a:centos:centos:java-1.8.0-openjdk, p-cpe:/a:centos:centos:java-17-openjdk-demo-fastdebug, p-cpe:/a:centos:centos:java-17-openjdk-demo-slowdebug, p-cpe:/a:centos:centos:java-17-openjdk-demo, p-cpe:/a:centos:centos:java-17-openjdk-devel-fastdebug, p-cpe:/a:centos:centos:java-17-openjdk-devel-slowdebug, p-cpe:/a:centos:centos:java-17-openjdk-devel, p-cpe:/a:centos:centos:java-17-openjdk-fastdebug, p-cpe:/a:centos:centos:java-17-openjdk-headless-fastdebug, p-cpe:/a:centos:centos:java-17-openjdk-headless-slowdebug, p-cpe:/a:centos:centos:java-17-openjdk-headless, p-cpe:/a:centos:centos:java-17-openjdk-javadoc-zip, p-cpe:/a:centos:centos:java-17-openjdk-javadoc, p-cpe:/a:centos:centos:java-17-openjdk-jmods-fastdebug, p-cpe:/a:centos:centos:java-17-openjdk-jmods-slowdebug, p-cpe:/a:centos:centos:java-17-openjdk-jmods, p-cpe:/a:centos:centos:java-17-openjdk-slowdebug, p-cpe:/a:centos:centos:java-17-openjdk-src-fastdebug, p-cpe:/a:centos:centos:java-17-openjdk-src-slowdebug, p-cpe:/a:centos:centos:java-17-openjdk-src, p-cpe:/a:centos:centos:java-17-openjdk-static-libs-fastdebug, p-cpe:/a:centos:centos:java-17-openjdk-static-libs-slowdebug, p-cpe:/a:centos:centos:java-17-openjdk-static-libs, p-cpe:/a:centos:centos:java-17-openjdk, p-cpe:/a:centos:centos:java-21-openjdk-demo-fastdebug, p-cpe:/a:centos:centos:java-21-openjdk-demo-slowdebug, p-cpe:/a:centos:centos:java-21-openjdk-demo, p-cpe:/a:centos:centos:java-21-openjdk-devel-fastdebug, p-cpe:/a:centos:centos:java-21-openjdk-devel-slowdebug, p-cpe:/a:centos:centos:java-21-openjdk-devel, p-cpe:/a:centos:centos:java-21-openjdk-fastdebug, p-cpe:/a:centos:centos:java-21-openjdk-headless-fastdebug, p-cpe:/a:centos:centos:java-21-openjdk-headless-slowdebug, p-cpe:/a:centos:centos:java-21-openjdk-headless, p-cpe:/a:centos:centos:java-21-openjdk-javadoc-zip, p-cpe:/a:centos:centos:java-21-openjdk-javadoc, p-cpe:/a:centos:centos:java-21-openjdk-jmods-fastdebug, p-cpe:/a:centos:centos:java-21-openjdk-jmods-slowdebug, p-cpe:/a:centos:centos:java-21-openjdk-jmods, p-cpe:/a:centos:centos:java-21-openjdk-slowdebug, p-cpe:/a:centos:centos:java-21-openjdk-src-fastdebug, p-cpe:/a:centos:centos:java-21-openjdk-src-slowdebug, p-cpe:/a:centos:centos:java-21-openjdk-src, p-cpe:/a:centos:centos:java-21-openjdk-static-libs-fastdebug, p-cpe:/a:centos:centos:java-21-openjdk-static-libs-slowdebug, p-cpe:/a:centos:centos:java-21-openjdk-static-libs, p-cpe:/a:centos:centos:java-21-openjdk, p-cpe:/a:centos:centos:java-25-openjdk-crypto-adapter-fastdebug, p-cpe:/a:centos:centos:java-25-openjdk-crypto-adapter-slowdebug, p-cpe:/a:centos:centos:java-25-openjdk-crypto-adapter, p-cpe:/a:centos:centos:java-25-openjdk-demo-fastdebug, p-cpe:/a:centos:centos:java-25-openjdk-demo-slowdebug, p-cpe:/a:centos:centos:java-25-openjdk-demo, p-cpe:/a:centos:centos:java-25-openjdk-devel-fastdebug, p-cpe:/a:centos:centos:java-25-openjdk-devel-slowdebug, p-cpe:/a:centos:centos:java-25-openjdk-devel, p-cpe:/a:centos:centos:java-25-openjdk-fastdebug, p-cpe:/a:centos:centos:java-25-openjdk-headless-fastdebug, p-cpe:/a:centos:centos:java-25-openjdk-headless-slowdebug, p-cpe:/a:centos:centos:java-25-openjdk-headless, p-cpe:/a:centos:centos:java-25-openjdk-javadoc-zip, p-cpe:/a:centos:centos:java-25-openjdk-javadoc, p-cpe:/a:centos:centos:java-25-openjdk-jmods-fastdebug, p-cpe:/a:centos:centos:java-25-openjdk-jmods-slowdebug, p-cpe:/a:centos:centos:java-25-openjdk-jmods, p-cpe:/a:centos:centos:java-25-openjdk-slowdebug, p-cpe:/a:centos:centos:java-25-openjdk-src-fastdebug, p-cpe:/a:centos:centos:java-25-openjdk-src-slowdebug, p-cpe:/a:centos:centos:java-25-openjdk-src, p-cpe:/a:centos:centos:java-25-openjdk-static-libs-fastdebug, p-cpe:/a:centos:centos:java-25-openjdk-static-libs-slowdebug, p-cpe:/a:centos:centos:java-25-openjdk-static-libs, p-cpe:/a:centos:centos:java-25-openjdk, p-cpe:/a:debian:debian_linux:openjdk-17, p-cpe:/a:debian:debian_linux:openjdk-21, p-cpe:/a:debian:debian_linux:openjdk-25, p-cpe:/a:debian:debian_linux:openjdk-27, p-cpe:/a:redhat:enterprise_linux:java-1.8.0-openjdk-accessibility-debug, p-cpe:/a:redhat:enterprise_linux:java-1.8.0-openjdk-accessibility-fastdebug, p-cpe:/a:redhat:enterprise_linux:java-1.8.0-openjdk-accessibility-slowdebug, p-cpe:/a:redhat:enterprise_linux:java-1.8.0-openjdk-accessibility, p-cpe:/a:redhat:enterprise_linux:java-1.8.0-openjdk-debug, p-cpe:/a:redhat:enterprise_linux:java-1.8.0-openjdk-demo-debug, p-cpe:/a:redhat:enterprise_linux:java-1.8.0-openjdk-demo-fastdebug, p-cpe:/a:redhat:enterprise_linux:java-1.8.0-openjdk-demo-slowdebug, p-cpe:/a:redhat:enterprise_linux:java-1.8.0-openjdk-demo, p-cpe:/a:redhat:enterprise_linux:java-1.8.0-openjdk-devel-debug, p-cpe:/a:redhat:enterprise_linux:java-1.8.0-openjdk-devel-fastdebug, p-cpe:/a:redhat:enterprise_linux:java-1.8.0-openjdk-devel-slowdebug, p-cpe:/a:redhat:enterprise_linux:java-1.8.0-openjdk-devel, p-cpe:/a:redhat:enterprise_linux:java-1.8.0-openjdk-fastdebug, p-cpe:/a:redhat:enterprise_linux:java-1.8.0-openjdk-headless-debug, p-cpe:/a:redhat:enterprise_linux:java-1.8.0-openjdk-headless-fastdebug, p-cpe:/a:redhat:enterprise_linux:java-1.8.0-openjdk-headless-slowdebug, p-cpe:/a:redhat:enterprise_linux:java-1.8.0-openjdk-headless, p-cpe:/a:redhat:enterprise_linux:java-1.8.0-openjdk-javadoc-debug, p-cpe:/a:redhat:enterprise_linux:java-1.8.0-openjdk-javadoc-zip-debug, p-cpe:/a:redhat:enterprise_linux:java-1.8.0-openjdk-javadoc-zip, p-cpe:/a:redhat:enterprise_linux:java-1.8.0-openjdk-javadoc, p-cpe:/a:redhat:enterprise_linux:java-1.8.0-openjdk-slowdebug, p-cpe:/a:redhat:enterprise_linux:java-1.8.0-openjdk-src-debug, p-cpe:/a:redhat:enterprise_linux:java-1.8.0-openjdk-src-fastdebug, p-cpe:/a:redhat:enterprise_linux:java-1.8.0-openjdk-src-slowdebug, p-cpe:/a:redhat:enterprise_linux:java-1.8.0-openjdk-src, p-cpe:/a:redhat:enterprise_linux:java-1.8.0-openjdk, p-cpe:/a:redhat:enterprise_linux:java-17-openjdk-demo-fastdebug, p-cpe:/a:redhat:enterprise_linux:java-17-openjdk-demo-slowdebug, p-cpe:/a:redhat:enterprise_linux:java-17-openjdk-demo, p-cpe:/a:redhat:enterprise_linux:java-17-openjdk-devel-fastdebug, p-cpe:/a:redhat:enterprise_linux:java-17-openjdk-devel-slowdebug, p-cpe:/a:redhat:enterprise_linux:java-17-openjdk-devel, p-cpe:/a:redhat:enterprise_linux:java-17-openjdk-fastdebug, p-cpe:/a:redhat:enterprise_linux:java-17-openjdk-headless-fastdebug, p-cpe:/a:redhat:enterprise_linux:java-17-openjdk-headless-slowdebug, p-cpe:/a:redhat:enterprise_linux:java-17-openjdk-headless, p-cpe:/a:redhat:enterprise_linux:java-17-openjdk-javadoc-zip, p-cpe:/a:redhat:enterprise_linux:java-17-openjdk-javadoc, p-cpe:/a:redhat:enterprise_linux:java-17-openjdk-jmods-fastdebug, p-cpe:/a:redhat:enterprise_linux:java-17-openjdk-jmods-slowdebug, p-cpe:/a:redhat:enterprise_linux:java-17-openjdk-jmods, p-cpe:/a:redhat:enterprise_linux:java-17-openjdk-slowdebug, p-cpe:/a:redhat:enterprise_linux:java-17-openjdk-src-fastdebug, p-cpe:/a:redhat:enterprise_linux:java-17-openjdk-src-slowdebug, p-cpe:/a:redhat:enterprise_linux:java-17-openjdk-src, p-cpe:/a:redhat:enterprise_linux:java-17-openjdk-static-libs-fastdebug, p-cpe:/a:redhat:enterprise_linux:java-17-openjdk-static-libs-slowdebug, p-cpe:/a:redhat:enterprise_linux:java-17-openjdk-static-libs, p-cpe:/a:redhat:enterprise_linux:java-17-openjdk, p-cpe:/a:redhat:enterprise_linux:java-21-openjdk-demo-fastdebug, p-cpe:/a:redhat:enterprise_linux:java-21-openjdk-demo-slowdebug, p-cpe:/a:redhat:enterprise_linux:java-21-openjdk-demo, p-cpe:/a:redhat:enterprise_linux:java-21-openjdk-devel-fastdebug, p-cpe:/a:redhat:enterprise_linux:java-21-openjdk-devel-slowdebug, p-cpe:/a:redhat:enterprise_linux:java-21-openjdk-devel, p-cpe:/a:redhat:enterprise_linux:java-21-openjdk-fastdebug, p-cpe:/a:redhat:enterprise_linux:java-21-openjdk-headless-fastdebug, p-cpe:/a:redhat:enterprise_linux:java-21-openjdk-headless-slowdebug, p-cpe:/a:redhat:enterprise_linux:java-21-openjdk-headless, p-cpe:/a:redhat:enterprise_linux:java-21-openjdk-javadoc-zip, p-cpe:/a:redhat:enterprise_linux:java-21-openjdk-javadoc, p-cpe:/a:redhat:enterprise_linux:java-21-openjdk-jmods-fastdebug, p-cpe:/a:redhat:enterprise_linux:java-21-openjdk-jmods-slowdebug, p-cpe:/a:redhat:enterprise_linux:java-21-openjdk-jmods, p-cpe:/a:redhat:enterprise_linux:java-21-openjdk-slowdebug, p-cpe:/a:redhat:enterprise_linux:java-21-openjdk-src-fastdebug, p-cpe:/a:redhat:enterprise_linux:java-21-openjdk-src-slowdebug, p-cpe:/a:redhat:enterprise_linux:java-21-openjdk-src, p-cpe:/a:redhat:enterprise_linux:java-21-openjdk-static-libs-fastdebug, p-cpe:/a:redhat:enterprise_linux:java-21-openjdk-static-libs-slowdebug, p-cpe:/a:redhat:enterprise_linux:java-21-openjdk-static-libs, p-cpe:/a:redhat:enterprise_linux:java-21-openjdk, p-cpe:/a:redhat:enterprise_linux:java-25-openjdk-crypto-adapter-fastdebug, p-cpe:/a:redhat:enterprise_linux:java-25-openjdk-crypto-adapter-slowdebug, p-cpe:/a:redhat:enterprise_linux:java-25-openjdk-crypto-adapter, p-cpe:/a:redhat:enterprise_linux:java-25-openjdk-demo-fastdebug, p-cpe:/a:redhat:enterprise_linux:java-25-openjdk-demo-slowdebug, p-cpe:/a:redhat:enterprise_linux:java-25-openjdk-demo, p-cpe:/a:redhat:enterprise_linux:java-25-openjdk-devel-fastdebug, p-cpe:/a:redhat:enterprise_linux:java-25-openjdk-devel-slowdebug, p-cpe:/a:redhat:enterprise_linux:java-25-openjdk-devel, p-cpe:/a:redhat:enterprise_linux:java-25-openjdk-fastdebug, p-cpe:/a:redhat:enterprise_linux:java-25-openjdk-headless-fastdebug, p-cpe:/a:redhat:enterprise_linux:java-25-openjdk-headless-slowdebug, p-cpe:/a:redhat:enterprise_linux:java-25-openjdk-headless, p-cpe:/a:redhat:enterprise_linux:java-25-openjdk-javadoc-zip, p-cpe:/a:redhat:enterprise_linux:java-25-openjdk-javadoc, p-cpe:/a:redhat:enterprise_linux:java-25-openjdk-jmods-fastdebug, p-cpe:/a:redhat:enterprise_linux:java-25-openjdk-jmods-slowdebug, p-cpe:/a:redhat:enterprise_linux:java-25-openjdk-jmods, p-cpe:/a:redhat:enterprise_linux:java-25-openjdk-slowdebug, p-cpe:/a:redhat:enterprise_linux:java-25-openjdk-src-fastdebug, p-cpe:/a:redhat:enterprise_linux:java-25-openjdk-src-slowdebug, p-cpe:/a:redhat:enterprise_linux:java-25-openjdk-src, p-cpe:/a:redhat:enterprise_linux:java-25-openjdk-static-libs-fastdebug, p-cpe:/a:redhat:enterprise_linux:java-25-openjdk-static-libs-slowdebug, p-cpe:/a:redhat:enterprise_linux:java-25-openjdk-static-libs, p-cpe:/a:redhat:enterprise_linux:java-25-openjdk

Required KB Items: Host/cpu, Host/local_checks_enabled, global_settings/vendor_unpatched, Host/OS/identifier

Exploit Ease: No known exploits are available

Vulnerability Publication Date: 10/21/2026

Reference Information

CVE: CVE-2026-91403

Detections

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