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CVE-2020-13941

Improper Input Validation in Apache Solr

8.8 HighPublic exploitFix available

Reported in SOLR-14515 (private) and fixed in SOLR-14561 (public), released in Solr version 8.6.0. The Replication handler (https://lucene.apache.org/solr/guide/8_6/index-replication.html#http-api-commands-for-the-replicationhandler) allows commands backup, restore and deleteBackup. Each of these take a location parameter, which was not validated, i.e you could read/write to any location the solr user can access.

Attack profile

How easy it is to exploit

Attack vector
Network
Complexity
Low
Privileges needed
Low
User interaction
None

What an attacker can affect

Confidentiality
High
Integrity
High
Availability
High

Exploit likelihood

5.26%Up 2.2 points since Apr 14, 2021
90%50%10%1%

What each source reports

NVD Score used 8.8

Reported in SOLR-14515 (private) and fixed in SOLR-14561 (public), released in Solr version 8.6.0. The Replication handler (https://lucene.apache.org/solr/guide/8_6/index-replication.html#http-api-commands-for-the-replicationhandler) allows commands backup, restore and deleteBackup. Each of these take a location parameter, which was not validated, i.e you could read/write to any location the solr user can access.

Record
CVE-2020-13941
CVSS 3.1
8.8 HighCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CVSS 2.0
6.5 MediumAV:N/AC:L/Au:S/C:P/I:P/A:P
Weakness
CWE-20
Updated
2026-11-02
CVE List No score

Reported in SOLR-14515 (private) and fixed in SOLR-14561 (public), released in Solr version 8.6.0. The Replication handler (https://lucene.apache.org/solr/guide/8_6/index-replication.html#http-api-commands-for-the-replicationhandler) allows commands backup, restore and deleteBackup. Each of these take a location parameter, which was not validated, i.e you could read/write to any location the solr user can access.

Record
CVE-2020-13941
Updated
2026-11-02
EUVDEUVD-2022-0754 No score

Reported in SOLR-14515 (private) and fixed in SOLR-14561 (public), released in Solr version 8.6.0. The Replication handler (https://lucene.apache.org/solr/guide/8_6/index-replication.html#http-api-commands-for-the-replicationhandler) allows commands backup, restore and deleteBackup. Each of these take a location parameter, which was not validated, i.e you could read/write to any location the solr user can access.

Record
EUVD-2022-0754
Updated
2026-11-03
GitHub AdvisoriesGHSA-2467-h365-j7hm 8.8

Improper Input Validation in Apache Solr

Reported in SOLR-14515 (private) and fixed in SOLR-14561 (public), released in Solr version 8.6.0. The Replication handler (https://lucene.apache.org/solr/guide/8_6/index-replication.html#http-api-commands-for-the-replicationhandler) allows commands backup, restore and deleteBackup. Each of these take a location parameter, which was not validated, i.e you could read/write to any location the solr user can access.

Record
GHSA-2467-h365-j7hm
CVSS 3.1
8.8 HighCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Weakness
CWE-20
Updated
2026-11-02
OSV 8.8

Reported in SOLR-14515 (private) and fixed in SOLR-14561 (public), released in Solr version 8.6.0. The Replication handler (https://lucene.apache.org/solr/guide/8_6/index-replication.html#http-api-commands-for-the-replicationhandler) allows commands backup, restore and deleteBackup. Each of these take a location parameter, which was not validated, i.e you could read/write to any location the solr user can access.

Record
CVE-2020-13941
CVSS 3.1
8.8 HighCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Updated
2026-11-02
OSVDEBIAN-CVE-2020-13941 8.8

Reported in SOLR-14515 (private) and fixed in SOLR-14561 (public), released in Solr version 8.6.0. The Replication handler (https://lucene.apache.org/solr/guide/8_6/index-replication.html#http-api-commands-for-the-replicationhandler) allows commands backup, restore and deleteBackup. Each of these take a location parameter, which was not validated, i.e you could read/write to any location the solr user can access.

Record
DEBIAN-CVE-2020-13941
CVSS 3.1
8.8 HighCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Updated
2026-11-02
OSVGHSA-2467-h365-j7hm 8.8

Improper Input Validation in Apache Solr

Reported in SOLR-14515 (private) and fixed in SOLR-14561 (public), released in Solr version 8.6.0. The Replication handler (https://lucene.apache.org/solr/guide/8_6/index-replication.html#http-api-commands-for-the-replicationhandler) allows commands backup, restore and deleteBackup. Each of these take a location parameter, which was not validated, i.e you could read/write to any location the solr user can access.

Record
GHSA-2467-h365-j7hm
CVSS 3.1
8.8 HighCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Weakness
CWE-20
Updated
2026-11-02
OSVUBUNTU-CVE-2020-13941 8.8

Reported in SOLR-14515 (private) and fixed in SOLR-14561 (public), released in Solr version 8.6.0. The Replication handler (https://lucene.apache.org/solr/guide/8_6/index-replication.html#http-api-commands-for-the-replicationhandler) allows commands backup, restore and deleteBackup. Each of these take a location parameter, which was not validated, i.e you could read/write to any location the solr user can access.

Record
UBUNTU-CVE-2020-13941
CVSS 3.1
8.8 HighCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Updated
2026-11-02
OSVBIT-solr-2020-13941 No score

Reported in SOLR-14515 (private) and fixed in SOLR-14561 (public), released in Solr version 8.6.0. The Replication handler (https://lucene.apache.org/solr/guide/8_6/index-replication.html#http-api-commands-for-the-replicationhandler) allows commands backup, restore and deleteBackup. Each of these take a location parameter, which was not validated, i.e you could read/write to any location the solr user can access.

Record
BIT-solr-2020-13941
Updated
2026-11-02

Affected products

Affected packages

Affected packages
PackageAffectedFixed
org.apache.solr:solr-parent
Maven
 before 8.6.0
8.6.0
solr
Bitnami
 before 8.6.0
8.6.0
lucene-solr
Debian:12
 before 3.6.2+dfsg-23
3.6.2+dfsg-23
lucene-solr
Debian:13
 before 3.6.2+dfsg-23
3.6.2+dfsg-23
lucene-solr
Debian:14
 before 3.6.2+dfsg-23
3.6.2+dfsg-23
org.apache.solr:solr-parent
Maven
 before 8.6.0, plus listed versions
1.3.01.4.01.4.13.1.03.2.0
Show 45 moreShow less
3.3.03.4.03.5.03.6.03.6.13.6.24.0.04.0.0-ALPHA4.0.0-BETA4.1.04.10.04.10.14.10.24.10.34.10.44.2.04.2.14.3.04.3.14.4.04.5.04.5.14.6.04.6.14.7.04.7.14.7.24.8.04.8.14.9.04.9.15.0.05.1.05.2.05.2.15.3.05.3.15.3.25.4.05.4.15.5.05.5.15.5.25.5.35.5.4
8.6.0
lucene-solr
Ubuntu:Pro:14.04:LTS
 All versions, plus listed versions
3.6.2+dfsg-13.6.2+dfsg-23.6.2+dfsg-2ubuntu0.1~esm13.6.2+dfsg-2ubuntu0.1~esm23.6.2+dfsg-2ubuntu0.1~esm4
 None known
lucene-solr
Ubuntu:Pro:16.04:LTS
 All versions, plus listed versions
3.6.2+dfsg-73.6.2+dfsg-83.6.2+dfsg-8ubuntu0.13.6.2+dfsg-8ubuntu0.1+esm1
 None known
lucene-solr
Ubuntu:Pro:18.04:LTS
 All versions, plus listed versions
3.6.2+dfsg-103.6.2+dfsg-113.6.2+dfsg-18~18.043.6.2+dfsg-18~18.04.1~esm2
 None known
lucene-solr
Ubuntu:20.04:LTS
 All versions, plus listed versions
3.6.2+dfsg-203.6.2+dfsg-22
 None known
Show 5 moreShow less
Affected packages
PackageAffectedFixed
lucene-solr
Ubuntu:22.04:LTS
 All versions, plus listed versions
3.6.2+dfsg-24
 None known
lucene-solr
Ubuntu:24.04:LTS
 All versions, plus listed versions
3.6.2+dfsg-26
 None known
lucene-solr
Ubuntu:25.10
 All versions, plus listed versions
3.6.2+dfsg-26
 None known
lucene-solr
Ubuntu:26.10
 All versions, plus listed versions
3.6.2+dfsg-27
 None known
lucene-solr
Ubuntu:26.04:LTS
 All versions, plus listed versions
3.6.2+dfsg-263.6.2+dfsg-27
 None known

Public exploits

Links only. Every CVE stores no exploit code.

Public exploits
SourceLinkDate
PoC in GitHubmbadanoiu/CVE-2020-139412025-04-14

History

History
RecordedChangedSources
aliases, productsEUVD
first indexedCVE List, GitHub Advisories, NVD, OSV, PoC in GitHub

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2020-13941 is a high vulnerability (CVSS 8.8) in Apache Solr, published August 17, 2020. Public exploit code exists. EPSS puts the chance of exploitation in the next 30 days at 5.26%, the 92nd percentile. Fixed in org.apache.solr:solr-parent 8.6.0.

References

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Left out here: 44 versions. The JSON record has them.

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