CVE-2026-54424: Software Security Vulnerability Vulnerability

HIGH
Advisory Identifier: GHSA-f445-7g93-34v9
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CVSS 8.4
CWE-648
Published
Advisory Summary

CVE-2026-54424 is a HIGH (CVSS 8.4) security vulnerability vulnerability (CWE-648: Incorrect Use of Privileged APIs) affecting Software libraries in the Maven ecosystem. The weakness occurs when the product does not conform to the api requirements for a function call that requires extra privileges. this could allow attackers to gain privileges by causing the function to be called incorrectly.. Remediation is available in the latest vendor maintenance releases.

CVE-2026-54424 at a Glance

CVE Identifier CVE-2026-54424
GHSA Identifier GHSA-f445-7g93-34v9
Severity HIGH
CVSS v3.1 Base Score 8.4
CWE Classification CWE-648: Incorrect Use of Privileged APIs
Affected Product Software
Package Ecosystem Maven
Published Date
Last Updated

Security Impact

CVSS: 8.4

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

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

How to Fix CVE-2026-54424

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-2026-54424, 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-648: Incorrect Use of Privileged APIs, where the product does not conform to the api requirements for a function call that requires extra privileges. this could allow attackers to gain privileges by causing the function to be called incorrectly. 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

An Incorrect Use of Privileged APIs vulnerability in Unity Parsec on Windows hosts leads to a potential Elevation of Privilege. This issue affects Parsec through v2026-05-04.0. The patched version is Parsec for Windows version 150-104a. A user can generate a situation where there is an instance of parsecd.exe running as NT AUTHORITY\SYSTEM with a user-controlled value of the AppData environment variable.

References

parsec.app WEB
https://parsec.app
NVD — CVE-2026-54424 NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-54424
Software Source Repository REPOSITORY
https://github.com/tomadimitrie/CVE-2026-54424
support.parsec.app/hc/en-us/articles/5... WEB
https://support.parsec.app/hc/en-us/articles/50612943726612-CVE-2026-54424
www.tomadimitrie.dev/blog/cve-2026-54424 WEB
https://www.tomadimitrie.dev/blog/CVE-2026-54424

Frequently Asked Questions

What is CVE-2026-54424?
CVE-2026-54424 is a security vulnerability in Software classified as a security vulnerability vulnerability under CWE-648: Incorrect Use of Privileged APIs.
Which Software versions are affected?
Affected versions include releases prior to current release patches.
What version fixes CVE-2026-54424?
Upgrading to current release patches (or the latest patched release for your respective branch) resolves the vulnerability.
What is the CVSS score of CVE-2026-54424?
CVE-2026-54424 has a CVSS v3.1 base score of 8.4 (HIGH) with vector string CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
What CWE is associated with CVE-2026-54424?
CVE-2026-54424 is classified under CWE-648: Incorrect Use of Privileged APIs (The product does not conform to the API requirements for a function call that requires extra privileges. This could allow attackers to gain privileges by causing the function to be called incorrectly.).
How can I check Maven dependencies for CVE-2026-54424?
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-f445-7g93-34v9",
  "modified" : "2026-07-04T03:31:02Z",
  "published" : "2026-07-04T03:31:02Z",
  "aliases" : [ "CVE-2026-54424" ],
  "details" : "An Incorrect Use of Privileged APIs vulnerability in Unity Parsec on Windows hosts leads to a potential Elevation of Privilege. This issue affects Parsec through v2026-05-04.0. The patched version is Parsec for Windows version 150-104a. A user can generate a situation where there is an instance of parsecd.exe running as NT AUTHORITY\\SYSTEM with a user-controlled value of the AppData environment variable.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"
  } ],
  "affected" : [ ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2026-54424"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/tomadimitrie/CVE-2026-54424"
  }, {
    "type" : "WEB",
    "url" : "https://parsec.app"
  }, {
    "type" : "WEB",
    "url" : "https://support.parsec.app/hc/en-us/articles/50612943726612-CVE-2026-54424"
  }, {
    "type" : "WEB",
    "url" : "https://www.tomadimitrie.dev/blog/CVE-2026-54424"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-648" ],
    "severity" : "HIGH",
    "github_reviewed" : false,
    "github_reviewed_at" : null,
    "nvd_published_at" : "2026-07-04T01:16:27Z"
  }
}