CVE-2025-24814 Apache Solr: Core-creation with "trusted" configset can use arbitrary untrusted files

What is CVE-2025-24814?

CVE-2025-24814 is a medium-severity vulnerability in Apache Solr, published on 27 Jan 2025. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

Core creation allows users to replace "trusted" configset files with arbitrary configuration

Solr instances that (1) use the "FileSystemConfigSetService" component (the default in "standalone" or "user-managed" mode), and (2) are running without authentication and authorization are vulnerable to a sort of privilege escalation wherein individual "trusted" configset files can be ignored in favor of potentially-untrusted replacements available elsewhere on the filesystem.  These replacement config files are treated as "trusted" and can use "<lib>" tags to add to Solr's classpath, which an attacker might use to load malicious code as a searchComponent or other plugin.

This issue affects all Apache Solr versions up through Solr 9.7.  Users can protect against the vulnerability by enabling authentication and authorization on their Solr clusters or switching to SolrCloud (and away from "FileSystemConfigSetService").  Users are also recommended to upgrade to Solr 9.8.0, which mitigates this issue by disabling use of "<lib>" tags by default.

Weakness: CWE-250

Which versions are affected by CVE-2025-24814?

3 open source packages ship an affected version, including org.apache.solr:solr-core and solr. It affects 1 product.

Products include Apache Solr.

How do I fix CVE-2025-24814?

Upgrade org.apache.solr:solr-core to 9.8.0 or later.

Is CVE-2025-24814 being exploited?

There is no known exploitation of CVE-2025-24814 in the wild and no public exploit code.

Other vulnerabilities in Apache Solr

• CVE-2019-17558 Apache Solr VelocityResponseWriter Plug-In Remote Code Execution Exploited High 7.5
• CVE-2019-0193 Apache Solr DataImportHandler Code Injection Exploited High 7.2
• CVE-2024-45216 Apache Solr: Authentication bypass possible using a fake URL Path ending Critical 9.8
• CVE-2021-44548 Apache Solr information disclosure vulnerability through DataImportHandler Critical 9.8
• CVE-2021-27905 SSRF vulnerability with the Replication handler Critical 9.8

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as BIT-solr-2025-24814, CLSA-2026-1793053857, DEBIAN-CVE-2025-24814, GHSA-68r2-fwcg-qpm8, UBUNTU-CVE-2025-24814.