Hardcoded credentials in the Basic Authentication setup tool (bin/solr auth enable) in Apache Solr versions 9.4.0 through 9.10.1 and 10.0.0 allows a remote attacker to gain full administrative access to the cluster via publicly known default credentials installed silently alongside the user-specified account.

As an immediate workaround without upgrading, delete the template users (superadmin, admin, search, index) from security.json or change their passwords.
The future, not yet released, versions 9.11.0 and 10.1.0 will not be vulnerable, and it will be enough to upgrade to solve the issue.

Not affected:
* Clusters where bin/solr auth enable was not used to bootstrap BasicAuth
* Clusters where template users have been assigned strong passwords after bootstrap

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Fixes

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History

Mon, 01 Jun 2026 11:30:00 +0000

Type Values Removed Values Added
References

Mon, 01 Jun 2026 09:15:00 +0000

Type Values Removed Values Added
Description Hardcoded credentials in the Basic Authentication setup tool (bin/solr auth enable) in Apache Solr versions 9.4.0 through 9.10.1 and 10.0.0 allows a remote attacker to gain full administrative access to the cluster via publicly known default credentials installed silently alongside the user-specified account. As an immediate workaround without upgrading, delete the template users (superadmin, admin, search, index) from security.json or change their passwords. The future, not yet released, versions 9.11.0 and 10.1.0 will not be vulnerable, and it will be enough to upgrade to solve the issue. Not affected: * Clusters where bin/solr auth enable was not used to bootstrap BasicAuth * Clusters where template users have been assigned strong passwords after bootstrap
Title Apache Solr: Enabling BasicAuth using bin/solr CLI configures additional insecure users
Weaknesses CWE-1188
CWE-798
References
Metrics cvssV3_1

{'score': 8.1, 'vector': 'CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H'}


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cve-icon MITRE

Status: PUBLISHED

Assigner: apache

Published:

Updated: 2026-06-01T09:52:40.723Z

Reserved: 2026-05-07T20:29:03.792Z

Link: CVE-2026-44825

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-06-01T09:16:19.267

Modified: 2026-06-01T11:16:25.500

Link: CVE-2026-44825

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-06-01T10:30:26Z

Weaknesses