CVE-2026-50233: Software Security Vulnerability Vulnerability

MODERATE
Advisory Identifier: GHSA-36hm-c9f8-f8xc
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CVSS 5.3
CWE-548
Published
Advisory Summary

CVE-2026-50233 is a MODERATE (CVSS 5.3) security vulnerability vulnerability (CWE-548: Exposure of Information Through Directory Listing) affecting Software libraries in the Maven ecosystem. The weakness occurs when the product inappropriately exposes a directory listing with an index of all the resources located inside of the directory.. Remediation is available in the latest vendor maintenance releases.

CVE-2026-50233 at a Glance

CVE Identifier CVE-2026-50233
GHSA Identifier GHSA-36hm-c9f8-f8xc
Severity MODERATE
CVSS v3.1 Base Score 5.3
CWE Classification CWE-548: Exposure of Information Through Directory Listing
Affected Product Software
Package Ecosystem Maven
Published Date
Last Updated

Security Impact

CVSS: 5.3

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

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

How to Fix CVE-2026-50233

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-2026-50233, 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-548: Exposure of Information Through Directory Listing, where the product inappropriately exposes a directory listing with an index of all the resources located inside of the directory. 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

Lyrion Music Server 9.2.0 contains an arbitrary directory listing vulnerability in its readdirectory query, exposed through both the CLI service (TCP port 9090) and the HTTP JSON-RPC endpoint (/jsonrpc.js). The query accepts a folder parameter and lists its contents with no restriction to the configured media directories and no authentication in the default configuration, allowing a remote, unauthenticated attacker to enumerate arbitrary locations on the host filesystem.

References

NVD — CVE-2026-50233 NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-50233
www.vulncheck.com/advisories/lyrion-m... WEB
https://www.vulncheck.com/advisories/lyrion-music-server-arbitrary-directory-listing
www.zeroscience.mk/en/vulnerabilities/... WEB
https://www.zeroscience.mk/en/vulnerabilities/ZSL-2026-5991.php

Frequently Asked Questions

What is CVE-2026-50233?
CVE-2026-50233 is a security vulnerability in Software classified as a security vulnerability vulnerability under CWE-548: Exposure of Information Through Directory Listing.
Which Software versions are affected?
Affected versions include releases prior to current release patches.
What version fixes CVE-2026-50233?
Upgrading to current release patches (or the latest patched release for your respective branch) resolves the vulnerability.
What is the CVSS score of CVE-2026-50233?
CVE-2026-50233 has a CVSS v3.1 base score of 5.3 (MODERATE) with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N.
What CWE is associated with CVE-2026-50233?
CVE-2026-50233 is classified under CWE-548: Exposure of Information Through Directory Listing (The product inappropriately exposes a directory listing with an index of all the resources located inside of the directory.).
How can I check Maven dependencies for CVE-2026-50233?
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-36hm-c9f8-f8xc",
  "modified" : "2026-06-05T15:32:25Z",
  "published" : "2026-06-05T15:32:25Z",
  "aliases" : [ "CVE-2026-50233" ],
  "details" : "Lyrion Music Server 9.2.0 contains an arbitrary directory listing vulnerability in its readdirectory query, exposed through both the CLI service (TCP port 9090) and the HTTP JSON-RPC endpoint (/jsonrpc.js). The query accepts a folder parameter and lists its contents with no restriction to the configured media directories and no authentication in the default configuration, allowing a remote, unauthenticated attacker to enumerate arbitrary locations on the host filesystem.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N"
  }, {
    "type" : "CVSS_V4",
    "score" : "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/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-2026-50233"
  }, {
    "type" : "WEB",
    "url" : "https://www.vulncheck.com/advisories/lyrion-music-server-arbitrary-directory-listing"
  }, {
    "type" : "WEB",
    "url" : "https://www.zeroscience.mk/en/vulnerabilities/ZSL-2026-5991.php"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-548" ],
    "severity" : "MODERATE",
    "github_reviewed" : false,
    "github_reviewed_at" : null,
    "nvd_published_at" : "2026-06-05T14:16:36Z"
  }
}