Description
In Apache Solr, the cluster can be partitioned into multiple collections and only a subset of nodes actually host any given collection. However, if a node receives a request for a collection it does not host, it proxies the request to a relevant node and serves the request. Solr bypasses all authorization settings for such requests. This affects all Solr versions prior to 7.7 that use the default authorization mechanism of Solr (RuleBasedAuthorizationPlugin).
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| Apache | Apache Solr | before 7.7 | — |
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 26.10 | lucene-solr | No fix yet | — |
| Ubuntu 26.04 LTS | lucene-solr | No fix yet | — |
| Ubuntu 25.10 | lucene-solr | No fix yet | — |
| Ubuntu 24.04 LTS | lucene-solr | No fix yet | — |
| Ubuntu 22.04 LTS | lucene-solr | No fix yet | — |
Show 4 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 20.04 LTS | lucene-solr | No fix yet | — |
| Ubuntu Pro 18.04 LTS | lucene-solr | No fix yet | — |
| Ubuntu Pro 16.04 LTS | lucene-solr | No fix yet | — |
| Ubuntu Pro 14.04 LTS | lucene-solr | No fix yet | — |
Affected packages
| Ecosystem | Package | Affected | Fixed | Record |
|---|---|---|---|---|
| Maven | org.apache.solr:solr-core | >= 7.0.0, < 7.7.0 | 7.7.0 | GHSA-j346-h5wc-rw2m |
| Maven | org.apache.solr:solr-core | < 6.6.6 | 6.6.6 | GHSA-j346-h5wc-rw2m |
| Maven | org.apache.solr:solr-parent | >= 7.0.0, < 7.7.0 | 7.7.0 | GHSA-j346-h5wc-rw2m |
| Maven | org.apache.solr:solr-parent | < 6.6.6 | 6.6.6 | GHSA-j346-h5wc-rw2m |