IBM WebSphere eXtreme Scale 8.6.1.0 < 8.6.1.6 (7267689)

medium Nessus Plugin ID 303926

Synopsis

The remote web application server is affected by multiple vulnerabilities

Description

The version of IBM WebSphere eXtreme Scale installed on the remote host is prior to 8.6.1.6. It is, therefore, affected by multiple vulnerabilities as referenced in the 7267689 advisory.

- In the Eclipse OMR port library component since release 0.2.0, an API function to return the textual names of all supported processor features was not accounting for the separator inserted between processor features. If the output buffer supplied to this function was incorrectly sized, failing to account for the separator when determining when a write to the buffer was safe could lead to a buffer overflow. This issue is fixed in Eclipse OMR version 0.8.0. (CVE-2026-1188)

- Vulnerability in the Oracle Java SE, Oracle GraalVM for JDK, Oracle GraalVM Enterprise Edition product of Oracle Java SE (component: Security). Supported versions that are affected are Oracle Java SE: 8u471, 8u471-b50, 8u471-perf, 11.0.29, 17.0.17, 21.0.9, 25.0.1; Oracle GraalVM for JDK: 17.0.17 and 21.0.9;
Oracle GraalVM Enterprise Edition: 21.3.16. 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 ability to cause a hang or frequently repeatable crash (complete DOS) of Oracle Java SE, Oracle GraalVM for JDK, Oracle GraalVM Enterprise Edition. Note: This vulnerability 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. This vulnerability does not apply to Java deployments, typically in servers, that load and run only trusted code (e.g., code installed by an administrator). (CVE-2026-21945)

- A Blind Server-Side Request Forgery (SSRF) vulnerability exists in Oracle Java 21. The vulnerability, which leads to Denial of Service (DoS), is present in the x509 certificate path validation mechanism when the non-default system property com.sun.security.enableAIAcaIssuers is set to true. (CVE-2026-21945)

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

Solution

Please see vendor advisory for details.

Plugin Details

Severity: Medium

ID: 303926

File Name: ibm_websphere_xs_7267689.nasl

Version: 1.1

Type: local

Agent: unix

Family: Web Servers

Published: 3/27/2026

Updated: 3/27/2026

Configuration: Enable paranoid mode

Supported Sensors: Nessus Agent, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 6.7

CVSS v2

Risk Factor: Critical

Base Score: 10

Temporal Score: 7.4

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

CVSS Score Source: CVE-2026-1188

CVSS v3

Risk Factor: Critical

Base Score: 9.8

Temporal Score: 8.5

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

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

CVSS v4

Risk Factor: Medium

Base Score: 6.9

Threat Score: 2.7

Threat Vector: CVSS:4.0/E:U

Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:L/SI:L/SA:L

Vulnerability Information

CPE: cpe:/a:ibm:websphere_extreme_scale

Required KB Items: Settings/ParanoidReport, installed_sw/IBM WebSphere eXtreme Scale

Exploit Ease: No known exploits are available

Patch Publication Date: 3/26/2026

Vulnerability Publication Date: 1/20/2026

Reference Information

CVE: CVE-2026-1188, CVE-2026-21925, CVE-2026-21932, CVE-2026-21933, CVE-2026-21945

Detections

Analytics