CVE-2024-45216: Solr Improper Authentication Vulnerability Vulnerability

CRITICAL
Advisory Identifier: GHSA-mjvf-4h88-6xm3
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CVSS 9.8
CWE-287 CWE-863
Published
Advisory Summary

CVE-2024-45216 is a CRITICAL (CVSS 9.8) improper authentication vulnerability vulnerability (CWE-287: Improper Authentication) affecting Solr libraries in the Maven ecosystem. The issue involves improper authentication vulnerability in apache solr. Remediation is available by upgrading affected packages to version 8.11.4, 9.7.0.

CVE-2024-45216 at a Glance

CVE Identifier CVE-2024-45216
GHSA Identifier GHSA-mjvf-4h88-6xm3
Severity CRITICAL
CVSS v3.1 Base Score 9.8
CWE Classification CWE-287: Improper Authentication
Affected Product Solr
Package Ecosystem Maven
Published Date
Last Updated

Security Impact

CVSS: 9.8

The security impact metrics below are parsed directly from the CVSS v3.1 vector string (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H).

Attack Vector Network (AV:N)
Attack Complexity Low (AC:L)
Privileges Required None (PR:N)
User Interaction None (UI:N)
Scope Unchanged (S:U)
Confidentiality High (C:H)
Integrity High (I:H)
Availability High (A:H)

How to Fix CVE-2024-45216

To remediate this vulnerability, upgrade all affected Solr dependencies to a patched release. Both direct and transitive dependencies should be checked, as frameworks or security libraries may pull in vulnerable versions transitively.

org.apache.solr:solr fixed: 8.11.4 
<dependency>
    <groupId>org.apache.solr</groupId>
    <artifactId>solr</artifactId>
    <version>8.11.4</version>
</dependency>
org.apache.solr:solr fixed: 9.7.0 
<dependency>
    <groupId>org.apache.solr</groupId>
    <artifactId>solr</artifactId>
    <version>9.7.0</version>
</dependency>
Verify Direct and Transitive Dependencies

Run the following command in your project directory to verify that all resolved dependencies use the patched release: 

mvn dependency:tree -Dincludes=org.apache.solr

How to Check if You Are Affected

To determine whether your Java application is affected by CVE-2024-45216, inspect your build dependencies using the Maven Dependency Plugin:

mvn dependency:tree -Dincludes=org.apache.solr

Analyze the terminal output to locate any version of Solr in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 8.11.4), your application is affected.

Note: The mvn dependency:tree -Dincludes=org.apache.solr command inspects the resolved dependency graph declared in your project's POM files; it does not perform automated security scanning or inspect runtime dynamic classpaths. Always verify runtime container classpaths and shaded JARs.

Technical Details

Vulnerability Mechanism & Technical Analysis

This vulnerability is classified under CWE-287: Improper Authentication, where when an actor claims to have a given identity, the product does not prove or insufficiently proves that the claim is correct. In Solr, software state validation or input boundaries are circumvented during processing. Review the official source advisory statement below for specific affected components, classes, and reproduction details.

Source Advisory Statement

Solr instances using the PKIAuthenticationPlugin, which is enabled by default when Solr Authentication is used, are vulnerable to Authentication bypass. A fake ending at the end of any Solr API URL path, will allow requests to skip Authentication while maintaining the API contract with the original URL Path. This fake ending looks like an unprotected API path, however it is stripped off internally after authentication but before API routing. This issue affects Apache Solr: from 5.3.0 before 8.11.4, from 9.0.0 before 9.7.0. Users are recommended to upgrade to version 9.7.0, or 8.11.4, which fix the issue.

CVE-2024-45216 Affected Solr Versions

2 component(s)
Fixed Versions:
8.11.49.7.0
Product / Package Ecosystem Affected Versions Fixed Version
org.apache.solr:solr
maven/org.apache.solr/solr
Maven
≥ 5.3.0
< 8.11.4
8.11.4
org.apache.solr:solr
maven/org.apache.solr/solr
Maven
≥ 9.0.0
< 9.7.0
9.7.0

References

NVD — CVE-2024-45216 NVD
https://nvd.nist.gov/vuln/detail/CVE-2024-45216
issues.apache.org/jira/browse/solr-17... WEB
https://issues.apache.org/jira/browse/SOLR-17417
Solr Security Information SECURITY
https://solr.apache.org/security.html#cve-2024-45216-apache-solr-authentication-bypass-possible-using-a-fake-url-path-ending
svn.apache.org/viewvc/lucene/dev/b... PACKAGE
http://svn.apache.org/viewvc/lucene/dev/branches/branch_4x/solr/webapp
Solr Security Information SECURITY
http://www.openwall.com/lists/oss-security/2024/10/15/8

Frequently Asked Questions

What is CVE-2024-45216?
CVE-2024-45216 is a security vulnerability in Solr involving Improper Authentication vulnerability in Apache Solr under CWE-287: Improper Authentication.
Which Solr versions are affected?
Affected versions include releases prior to 8.11.4, 9.7.0 across affected packages: org.apache.solr:solr.
What version fixes CVE-2024-45216?
Upgrading to 8.11.4, 9.7.0 (or the latest patched release for your respective branch) resolves the vulnerability.
Is solr affected?
Yes, org.apache.solr:solr is affected in releases prior to 8.11.4, 9.7.0. Upgrade your dependency to 8.11.4, 9.7.0 or later.
What is the CVSS score of CVE-2024-45216?
CVE-2024-45216 has a CVSS v3.1 base score of 9.8 (CRITICAL) with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
What CWE is associated with CVE-2024-45216?
CVE-2024-45216 is classified under CWE-287: Improper Authentication (When an actor claims to have a given identity, the product does not prove or insufficiently proves that the claim is correct.).
How can I check Maven dependencies for CVE-2024-45216?
Run the dependency tree command: 'mvn dependency:tree -Dincludes=org.apache.solr'. This command lists direct and transitive dependencies in your build configuration so you can verify if a vulnerable version is resolved.
Machine-readable OSV JSON OSV v1.5 Schema
Normalized schema output
View Raw JSON 
{
  "schema_version" : "1.4.0",
  "id" : "GHSA-mjvf-4h88-6xm3",
  "modified" : "2025-07-02T00:01:27Z",
  "published" : "2024-10-16T09:30:31Z",
  "aliases" : [ "CVE-2024-45216" ],
  "summary" : "Improper Authentication vulnerability in Apache Solr",
  "details" : "Solr instances using the PKIAuthenticationPlugin, which is enabled by default when Solr Authentication is used, are vulnerable to Authentication bypass. A fake ending at the end of any Solr API URL path, will allow requests to skip Authentication while maintaining the API contract with the original URL Path. This fake ending looks like an unprotected API path, however it is stripped off internally after authentication but before API routing.\n\n\nThis issue affects Apache Solr: from 5.3.0 before 8.11.4, from 9.0.0 before 9.7.0.\n\nUsers are recommended to upgrade to version 9.7.0, or 8.11.4, which fix the issue.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"
  }, {
    "type" : "CVSS_V4",
    "score" : "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "Maven",
      "name" : "org.apache.solr:solr"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "5.3.0"
      }, {
        "fixed" : "8.11.4"
      } ]
    } ]
  }, {
    "package" : {
      "ecosystem" : "Maven",
      "name" : "org.apache.solr:solr"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "9.0.0"
      }, {
        "fixed" : "9.7.0"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2024-45216"
  }, {
    "type" : "WEB",
    "url" : "https://issues.apache.org/jira/browse/SOLR-17417"
  }, {
    "type" : "WEB",
    "url" : "https://solr.apache.org/security.html#cve-2024-45216-apache-solr-authentication-bypass-possible-using-a-fake-url-path-ending"
  }, {
    "type" : "PACKAGE",
    "url" : "http://svn.apache.org/viewvc/lucene/dev/branches/branch_4x/solr/webapp"
  }, {
    "type" : "WEB",
    "url" : "http://www.openwall.com/lists/oss-security/2024/10/15/8"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-287", "CWE-863" ],
    "severity" : "CRITICAL",
    "github_reviewed" : true,
    "github_reviewed_at" : "2024-10-16T17:46:16Z",
    "nvd_published_at" : "2024-10-16T08:15:05Z"
  }
}