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CVE-2026-22022 is an authorization bypass vulnerability in Apache Solr affecting versions 5.3.0 through 9.10.0 when deployments use the RuleBasedAuthorizationPlugin with a multi-role configuration and certain predefined permission rules. The flaw is caused by insufficiently strict input validation in the RuleBasedAuthorizationPlugin components, which can allow unauthorized access to certain Solr APIs despite the intended permission model. The issue is limited to configurations that define multiple roles, use one or more of the predefined permissions config-read, config-edit, schema-read, metrics-read, or security-read, omit the all predefined permission from the permission list, and expose Solr to unfiltered client requests.
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An Apache Solr authorization bypass vulnerability mentioned as part of vendor security history.
Authorization bypass/unauthorized API access in Apache Solr when using RuleBasedAuthorizationPlugin with specific multi-role and permission configurations due to insufficiently strict input validation.
Query your assets running an affected version, and investigate the blast radius.
Every observed campaign linking this CVE to a named adversary.
Malware families riding this exploit, with evidence and IOCs.
YARA, Sigma, Snort, and vendor rules, auto-deployed to your SIEM.
Cross-references every affected SKU, including bundled OEM variants.
Community discussion across Reddit, Mastodon, and other social sources.