CVE-2026-44825
Fixed in a distro release EPSS 4%CVSS 8.1
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
Products: Apache Software Foundation Apache Solr
Fixed upstream
| Ecosystem | Package | Fixed in |
|---|---|---|
| Maven | org.apache.solr:solr-core | no fix |
Distro releases
| Release | Package | Fixed in |
|---|---|---|
| Chainguard | solr-9 | 9.11.0-r0 |
| Chainguard | solr-9-iamguarded-compat | 9.11.0-r0 |
| Chainguard | solr-fips-9 | 9.11.0-r0 |
| Chainguard | solr-fips-9-iamguarded-compat | 9.11.0-r0 |
| Chainguard | wso2is | no fix |
| Ubuntu 20.04 LTS | lucene-solr | no fix |
| Ubuntu 22.04 LTS | lucene-solr | no fix |
| Ubuntu 24.04 LTS | lucene-solr | no fix |
| Ubuntu 25.10 | lucene-solr | no fix |
| Ubuntu 26.04 LTS | lucene-solr | no fix |
| Ubuntu Pro 14.04 LTS | lucene-solr | no fix |
| Ubuntu Pro 16.04 LTS | lucene-solr | no fix |
| Ubuntu Pro 18.04 LTS | lucene-solr | no fix |