CVE-2026-90891: Software Security Vulnerability Vulnerability

MODERATE
Advisory Identifier: GHSA-g9vq-5jvw-3c63
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CVSS 5.5
CWE-1256
Published
Advisory Summary

CVE-2026-90891 is a MODERATE (CVSS 5.5) security vulnerability vulnerability (CWE-1256: Improper Restriction of Software Interfaces to Hardware Features) affecting Software libraries in the Maven ecosystem. The weakness occurs when the product provides software-controllable device functionality for capabilities such as power and clock management, but it does not properly limit functionality that can lead to modification of hardware memory or register bits, or the ability to observe physical side channels.. Remediation is available in the latest vendor maintenance releases.

CVE-2026-90891 at a Glance

CVE Identifier CVE-2026-90891
GHSA Identifier GHSA-g9vq-5jvw-3c63
Severity MODERATE
CVSS v3.1 Base Score 5.5
CWE Classification CWE-1256: Improper Restriction of Software Interfaces to Hardware Features
Affected Product Software
Package Ecosystem Maven
Published Date
Last Updated

Security Impact

CVSS: 5.5

The security impact metrics below are parsed directly from the CVSS v3.1 vector string (CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H).

Attack Vector Local (AV:L)
Attack Complexity Low (AC:L)
Privileges Required Low (PR:L)
User Interaction None (UI:N)
Scope Unchanged (S:U)
Confidentiality None (C:N)
Integrity None (I:N)
Availability High (A:H)

How to Fix CVE-2026-90891

To remediate this vulnerability, upgrade all affected Software dependencies to a patched release. Both direct and transitive dependencies should be checked, as frameworks or security libraries may pull in vulnerable versions transitively.

Verify Direct and Transitive Dependencies

Run the following command in your project directory to verify that all resolved dependencies use the patched release: 

mvn dependency:tree

How to Check if You Are Affected

To determine whether your Java application is affected by CVE-2026-90891, inspect your build dependencies using the Maven Dependency Plugin:

mvn dependency:tree

Analyze the terminal output to locate any version of Software in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than the patched release), your application is affected.

Note: The mvn dependency:tree command inspects the resolved dependency graph declared in your project's POM files; it does not perform automated security scanning or inspect runtime dynamic classpaths. Always verify runtime container classpaths and shaded JARs.

Technical Details

Vulnerability Mechanism & Technical Analysis

This vulnerability is classified under CWE-1256: Improper Restriction of Software Interfaces to Hardware Features, where the product provides software-controllable device functionality for capabilities such as power and clock management, but it does not properly limit functionality that can lead to modification of hardware memory or register bits, or the ability to observe physical side channels. In Software, software state validation or input boundaries are circumvented during processing. Review the official source advisory statement below for specific affected components, classes, and reproduction details.

Source Advisory Statement

ASRock Polychrome SYNC/RGB software utility developed by ASRock Inc. has an Improper Access Control vulnerability. Authenticated local attackers can send a specially crafted IOCTL request to cause the driver to write to improperly restricted I/O ports, resulting in a forced operating system reboot.

References

NVD — CVE-2026-90891 NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-90891
www.twcert.org.tw/en/cp-139-11204-6b1... WEB
https://www.twcert.org.tw/en/cp-139-11204-6b1c6-2.html
www.twcert.org.tw/tw/cp-132-11205-f66... WEB
https://www.twcert.org.tw/tw/cp-132-11205-f6677-1.html

Frequently Asked Questions

What is CVE-2026-90891?
CVE-2026-90891 is a security vulnerability in Software classified as a security vulnerability vulnerability under CWE-1256: Improper Restriction of Software Interfaces to Hardware Features.
Which Software versions are affected?
Affected versions include releases prior to current release patches.
What version fixes CVE-2026-90891?
Upgrading to current release patches (or the latest patched release for your respective branch) resolves the vulnerability.
What is the CVSS score of CVE-2026-90891?
CVE-2026-90891 has a CVSS v3.1 base score of 5.5 (MODERATE) with vector string CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.
What CWE is associated with CVE-2026-90891?
CVE-2026-90891 is classified under CWE-1256: Improper Restriction of Software Interfaces to Hardware Features (The product provides software-controllable device functionality for capabilities such as power and clock management, but it does not properly limit functionality that can lead to modification of hardware memory or register bits, or the ability to observe physical side channels.).
How can I check Maven dependencies for CVE-2026-90891?
Run the dependency tree command: 'mvn dependency:tree'. This command lists direct and transitive dependencies in your build configuration so you can verify if a vulnerable version is resolved.
Machine-readable OSV JSON OSV v1.5 Schema
Normalized schema output
View Raw JSON 
{
  "schema_version" : "1.4.0",
  "id" : "GHSA-g9vq-5jvw-3c63",
  "modified" : "2026-09-14T12:31:40Z",
  "published" : "2026-09-14T12:31:40Z",
  "aliases" : [ "CVE-2026-90891" ],
  "details" : "ASRock Polychrome SYNC/RGB software utility developed by ASRock Inc. has an Improper Access Control vulnerability. Authenticated local attackers can send a specially crafted IOCTL request to cause the driver to write to improperly restricted I/O ports, resulting in a forced operating system reboot.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H"
  }, {
    "type" : "CVSS_V4",
    "score" : "CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X"
  } ],
  "affected" : [ ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2026-90891"
  }, {
    "type" : "WEB",
    "url" : "https://www.twcert.org.tw/en/cp-139-11204-6b1c6-2.html"
  }, {
    "type" : "WEB",
    "url" : "https://www.twcert.org.tw/tw/cp-132-11205-f6677-1.html"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-1256" ],
    "severity" : "MODERATE",
    "github_reviewed" : false,
    "github_reviewed_at" : null,
    "nvd_published_at" : "2026-09-14T11:17:07Z"
  }
}