Is CVE-2023-50386 actively exploited?

Yes. CVE-2023-50386 is listed in the CISA Known Exploited Vulnerabilities (KEV) catalog, which means exploitation in the wild has been confirmed.

Can CVE-2023-50386 be exploited remotely?

The attack vector of CVE-2023-50386 has not been classified yet.

What is the CVSS score of CVE-2023-50386?

CVE-2023-50386 has not received a CVSS score yet.

HOME VULNERABILITIESCVE-2023-50386

UNKNOWNCISA KEVIN THE WILD

CVE-2023-50386

Published: April 11, 2026

Official Description

Improper Control of Dynamically-Managed Code Resources, Unrestricted Upload of File with Dangerous Type, Inclusion of Functionality from Untrusted Control Sphere vulnerability in Apache Solr.This issue affects Apache Solr: from 6.0.0 through 8.11.2, from 9.0.0 before 9.4.1.

In the affected versions, Solr ConfigSets accepted Java jar and class files to be uploaded through the ConfigSets API.

When backing up Solr Collections, these configSet files would be saved to disk when using the LocalFileSystemRepository (the default for backups).

If the backup was saved to a directory that Solr uses in its ClassPath/ClassLoaders, then the jar and class files would be available to use with any ConfigSet, trusted or untrusted.

When Solr is run in a secure way (Authorization enabled), as is strongly suggested, this vulnerability is limited to extending the Backup permissions with the ability to add libraries.

Users are recommended to upgrade to version 8.11.3 or 9.4.1, which fix the issue.

In these versions, the following protections have been added:

* Users are no longer able to upload files to a configSet that could be executed via a Java ClassLoader.

* The Backup API restricts saving backups to directories that are used in the ClassLoader.

NVD Source

Technical Analysis

CVE-2023-50386 requires local access, meaning attackers must already have a foothold on the target system.

Exploitation requires some privileges, which limits the exposure to scenarios where an attacker has already gained initial access.

CISA has added CVE-2023-50386 to the Known Exploited Vulnerabilities (KEV) catalog, confirming active exploitation in the wild. U.S. federal agencies are required to patch this within the mandated timeframe, and all organizations should treat remediation as urgent.