Files or Directories Accessible to External Parties Affecting org.apache.solr:solr-core package, versions [8.6.0,9.10.1)
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-JAVA-ORGAPACHESOLR-15054279
- published22 Jan 2026
- disclosed21 Jan 2026
- creditDamon Toey
Introduced: 21 Jan 2026
CVE-2026-22444 (opens in a new tab)How to fix?
Upgrade org.apache.solr:solr-core to version 9.10.1 or higher.
Overview
org.apache.solr:solr-core is an open source enterprise search platform built on Apache Lucene
Affected versions of this package are vulnerable to Files or Directories Accessible to External Parties in the AllowPathBuilder behavior accessible via the create core API. An attacker can read configsets from unauthorized filesystem paths (and, on Windows, expose NTLM user hashes), over this API. As a result, "create core" operations on the basis of those configsets may succeed.
This is only exploitable if Solr is running in standalone mode and the allowPath setting is used to restrict file access
Workaround
This vulnerability can be mitigated by enabling the RuleBasedAuthorizationPlugin and restricting the predefined "core-admin-edit" permission and other high-level custom permissions to privileged users only.