Apache Solr: Enabling BasicAuth using bin/solr CLI configures additional insecure users
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
- No fix listed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA and GitHub. Impact type from CWE-798.
Summary
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
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Total
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Apache | Apache Solr | 9.4.0 – 9.10.1; 10.0.0 | — | No fix listed | CNA |
| — | org.apache.solr:solr-core (Maven) | 9.4.0 – 9.10.1 | — | No fix listed | GHSA-qhr7-h655-pw6r |
| — | org.apache.solr:solr-core (Maven) | — | — | No fix listed | GHSA-qhr7-h655-pw6r |
- Apache Solr VendorApache Affected 9.4.0 – 9.10.1; 10.0.0 Fixed in — No fix listed CNA
- org.apache.solr:solr-core (Maven) Vendor— Affected 9.4.0 – 9.10.1 Fixed in — No fix listed GHSA-qhr7-h655-pw6r
- org.apache.solr:solr-core (Maven) Vendor— Affected — Fixed in — No fix listed GHSA-qhr7-h655-pw6r
Remediation
No fixed version listed by the sources yet.
Vendor assessments
Red Hat
Red Hat rating: Important. Red Hat's page for this CVE →
Not affected: 2 products
- Red Hat JBoss Enterprise Application Platform Expansion Pack
- Red Hat Offline Knowledge Portal
Timeline
- 2026-10-02 Threatist record created from CVE-2026-44825
- 2026-10-03 Alias added: GHSA-qhr7-h655-pw6r
- 2026-10-25 EPSS moved to the 90th–95th percentile
References
More Apache Solr vulnerabilities
- TI-2024-30303 Apache Solr: Authentication bypass possible using a fake URL Path ending CVSS 3.1CRITICAL 9.8
- 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
Sources
- CVE-2026-44825 · CVE Program
- CVE-2026-44825 · NVD
- FIRST EPSS
- GHSA-qhr7-h655-pw6r · GitHub Advisory Database · CC BY 4.0
- CVE-2026-44825 · Red Hat security data · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences