Read the docs
TI-2024-30303 Aliases CVE-2024-45216GHSA-mjvf-4h88-6xm3

Apache Solr: Authentication bypass possible using a fake URL Path ending

Priority CRITICAL 92CWE-287Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
Security bypass
Confidentiality · integrity · availability
High · High · High
Fix status
Fixed

Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA and GitHub. Impact type from CWE-287.

Summary

Improper Authentication vulnerability in Apache Solr. 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.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.92747 99th percentileScored 2026-11-07
Fix Fixed Apache Solr (Apache Software Foundation): 8.11.4, 9.7.0org.apache.solr:solr (Maven): 8.11.4, 9.7.0

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
Yes
Technical impact
Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
ApacheApache Solr5.3.0 to before 8.11.4; 9.0.0 to before 9.7.08.11.4, 9.7.0Patch availableCNA
—org.apache.solr:solr (Maven)5.3.0 to before 8.11.48.11.4Patch availableGHSA-mjvf-4h88-6xm3
—org.apache.solr:solr (Maven)9.0.0 to before 9.7.09.7.0Patch availableGHSA-mjvf-4h88-6xm3
  • Apache Solr VendorApache Affected 5.3.0 to before 8.11.4; 9.0.0 to before 9.7.0 Fixed in 8.11.4, 9.7.0 Patch available CNA
  • org.apache.solr:solr (Maven) Vendor— Affected 5.3.0 to before 8.11.4 Fixed in 8.11.4 Patch available GHSA-mjvf-4h88-6xm3
  • org.apache.solr:solr (Maven) Vendor— Affected 9.0.0 to before 9.7.0 Fixed in 9.7.0 Patch available GHSA-mjvf-4h88-6xm3

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:apache:solr:*:*:*:*:*:*:*:*5.3.0 to before 8.11.4; 9.0.0 to before 9.7.0VulnerableApache
  • cpe:2.3:a:apache:solr:*:*:*:*:*:*:*:* Versions 5.3.0 to before 8.11.4; 9.0.0 to before 9.7.0 Vulnerable ·Apache

Remediation

  • Fix · CNA Apache Solr (Apache Software Foundation) Fixed in 8.11.4, 9.7.0
  • Fix · GHSA-mjvf-4h88-6xm3 org.apache.solr:solr (Maven) Fixed in 8.11.4 Advisory →
  • Fix · GHSA-mjvf-4h88-6xm3 org.apache.solr:solr (Maven) Fixed in 9.7.0 Advisory →

Fixed in the same release

Records fixed by the same vendor advisory or release, as the CNA lists them.

  • Release ·

    Apache Solr 8.11.4, 9.7.0

    2 records Highest priority Priority CRITICAL 1 CRITICAL, 1 LOW

    Other records, highest priority first

    • TI-2024-30304 Apache Solr: ConfigSets created during a backup restore command are trusted implicitlyPriority LOW 39

Timeline

  1. 2026-10-02 Threatist record created from CVE-2024-45216
  2. 2026-10-03 Alias added: GHSA-mjvf-4h88-6xm3

References

  • TI-2019-13101 Injection in Apache Solr KEVCVSS 3.1HIGH 7.5
  • TI-2019-00170 Code injection in Apache Solr KEVCVSS 3.1HIGH 7.2
  • TI-2023-23979 The HTTP/2 protocol allows a denial of service (server resource consumption) because… KEVCVSS 3.1HIGH 7.5
  • TI-2021-09240 SSRF vulnerability with the Replication handler CVSS 3.1CRITICAL 9.8
  • TI-2017-09354 XML external entity injection in Apache Solr before 7.1 with Apache Lucene before 7.1 CVSS 3.1CRITICAL 9.8
  • TI-2020-10933 Incorrect authorization in Apache Solr CVSS 3.1CRITICAL 9.8
See all 46 →

Sources