Apache Solr: Authentication bypass possible using a fake URL Path ending (CVE-2024-45216)
Apache Solr contains an authentication bypass vulnerability (CVE-2024-45216) affecting versions from 5.3.0 before 8.11.4 and from 9.0.0 before 9.7.0. The issue arises in Solr instances using the PKIAuthenticationPlugin, which is enabled by default when Solr Authentication is used. An attacker can append a fake URL path ending to any Solr API URL, causing the request to bypass authentication while still conforming to the API contract. This fake ending is stripped internally after authentication but before API routing, allowing unauthorized access. Fixed versions 8.11.4 and 9.7.0 address this vulnerability.
AI Analysis
Technical Summary
CVE-2024-45216 is an authentication bypass vulnerability in Apache Solr affecting versions >=5.3.0 <8.11.4 and >=9.0.0 <9.7.0. The flaw exists in the PKIAuthenticationPlugin, enabled by default when Solr Authentication is active. By appending a crafted fake URL path ending to Solr API requests, attackers can bypass authentication checks because the fake ending is removed internally after authentication but before API routing, allowing unauthorized API access. Upgrading to Solr versions 8.11.4 or 9.7.0 mitigates this issue.
Potential Impact
Successful exploitation allows an attacker to bypass authentication controls on Solr API endpoints, potentially granting unauthorized access to Solr functionalities that require authentication. This could lead to unauthorized data access or manipulation depending on the Solr deployment and configuration. No known exploits in the wild have been reported at this time.
Mitigation Recommendations
A patch is available. Users should upgrade affected Apache Solr instances to version 8.11.4 or 9.7.0 or later to remediate this authentication bypass vulnerability. No additional mitigations are specified beyond applying the official fix.
Apache Solr: Authentication bypass possible using a fake URL Path ending (CVE-2024-45216)
Description
Apache Solr contains an authentication bypass vulnerability (CVE-2024-45216) affecting versions from 5.3.0 before 8.11.4 and from 9.0.0 before 9.7.0. The issue arises in Solr instances using the PKIAuthenticationPlugin, which is enabled by default when Solr Authentication is used. An attacker can append a fake URL path ending to any Solr API URL, causing the request to bypass authentication while still conforming to the API contract. This fake ending is stripped internally after authentication but before API routing, allowing unauthorized access. Fixed versions 8.11.4 and 9.7.0 address this vulnerability.
Affected software
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AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2024-45216 is an authentication bypass vulnerability in Apache Solr affecting versions >=5.3.0 <8.11.4 and >=9.0.0 <9.7.0. The flaw exists in the PKIAuthenticationPlugin, enabled by default when Solr Authentication is active. By appending a crafted fake URL path ending to Solr API requests, attackers can bypass authentication checks because the fake ending is removed internally after authentication but before API routing, allowing unauthorized API access. Upgrading to Solr versions 8.11.4 or 9.7.0 mitigates this issue.
Potential Impact
Successful exploitation allows an attacker to bypass authentication controls on Solr API endpoints, potentially granting unauthorized access to Solr functionalities that require authentication. This could lead to unauthorized data access or manipulation depending on the Solr deployment and configuration. No known exploits in the wild have been reported at this time.
Mitigation Recommendations
A patch is available. Users should upgrade affected Apache Solr instances to version 8.11.4 or 9.7.0 or later to remediate this authentication bypass vulnerability. No additional mitigations are specified beyond applying the official fix.
Technical Details
- Gcve Source
- db.gcve.eu
- Osv Id
- BIT-solr-2024-45216
- Osv Schema Version
- 1.5.0
- Aliases
- ["CVE-2024-45216"]
- Ecosystems
- ["Bitnami"]
- Database Specific Severity
- Critical
- Cvss Version
- null
Threat ID: 6aa005c3acd9273b49ab5bf4
Added to database: 09/08/2026, 12:55:31 UTC
Last enriched: 09/08/2026, 13:18:08 UTC
Last updated: 09/08/2026, 22:52:03 UTC
Views: 2
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