CVE catalog
CVE-2021-27905
lucene-solr: CVE-2021-27905
- Severity
- Medium
- Published
- Source
- [NVD] · [CVE record]
- EPSS
- 93.05% · Oct 25, 2026
The ReplicationHandler (normally registered at "/replication" under a Solr core) in Apache Solr has a "masterUrl" (also "leaderUrl" alias) parameter that is used to designate another ReplicationHandler on another Solr core to replicate index data into the local core. To prevent a SSRF vulnerability, Solr ought to check these parameters against a similar configuration it uses for the "shards" parameter. Prior to this bug getting fixed, it did not. This problem affects essentially all Solr versions prior to it getting fixed in 8.8.2.
Vulnerable and fixed packages
Distribution-reported package versions and fixes. These do not depend on matching against the OpenFactory package catalog.
| Distribution | Package | Release | Version | Status |
|---|---|---|---|---|
| Debian | lucene-solr | sid | 3.6.2+dfsg-28 | fixed |
| Debian | lucene-solr | forky | 3.6.2+dfsg-28 | fixed |
| Debian | lucene-solr | trixie | 3.6.2+dfsg-26 | fixed |
| Debian | lucene-solr | bookworm | 3.6.2+dfsg-26 | fixed |
Fixed-version evidence
| Distribution | Package | Type | Release | Fixed version | Urgency | Origin | Bugs |
|---|---|---|---|---|---|---|---|
| Debian | lucene-solr | source | sid | 3.6.2+dfsg-23 | not yet assigned | Not reported | Not reported |
| Debian | lucene-solr | source | forky | 3.6.2+dfsg-23 | not yet assigned | Not reported | Not reported |
| Debian | lucene-solr | source | trixie | 3.6.2+dfsg-23 | not yet assigned | Not reported | Not reported |
| Debian | lucene-solr | source | bookworm | 3.6.2+dfsg-23 | not yet assigned | Not reported | Not reported |
OpenFactory catalog packages
[Debian 12 (Bookworm)]
- [liblucene3-contrib-java]Fixed
Source package: [lucene-solr]
Details (2)
3.6.2+dfsg-26· all · bookwormFixed · Fixed:
3.6.2+dfsg-23dsa · lucene-solr · debian · bookworm; dsa · lucene-solr · debian · 12
3.6.2+dfsg-26· all · bookwormFixed · Fixed:
3.6.2+dfsg-23dsa · lucene-solr · debian · bookworm; dsa · lucene-solr · debian · 12
- [liblucene3-java]Fixed
Source package: [lucene-solr]
Details (2)
3.6.2+dfsg-26· all · bookwormFixed · Fixed:
3.6.2+dfsg-23dsa · lucene-solr · debian · bookworm; dsa · lucene-solr · debian · 12
3.6.2+dfsg-26· all · bookwormFixed · Fixed:
3.6.2+dfsg-23dsa · lucene-solr · debian · bookworm; dsa · lucene-solr · debian · 12
[Debian 13 (Trixie)]
- [liblucene3-contrib-java]Fixed
Source package: [lucene-solr]
Details (2)
3.6.2+dfsg-26· all · trixieFixed · Fixed:
3.6.2+dfsg-23dsa · lucene-solr · debian · 13
3.6.2+dfsg-26· all · trixieFixed · Fixed:
3.6.2+dfsg-23dsa · lucene-solr · debian · 13
- [liblucene3-java]Fixed
Source package: [lucene-solr]
Details (2)
3.6.2+dfsg-26· all · trixieFixed · Fixed:
3.6.2+dfsg-23dsa · lucene-solr · debian · 13
3.6.2+dfsg-26· all · trixieFixed · Fixed:
3.6.2+dfsg-23dsa · lucene-solr · debian · 13
Observed: