CVE-2020-13957
Incorrect Authorization in Apache Solr
Apache Solr versions 6.6.0 to 6.6.6, 7.0.0 to 7.7.3 and 8.0.0 to 8.6.2 prevents some features considered dangerous (which could be used for remote code execution) to be configured in a ConfigSet that's uploaded via API without authentication/authorization. The checks in place to prevent such features can be circumvented by using a combination of UPLOAD/CREATE actions.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- None
What an attacker can affect
- Confidentiality
- High
- Integrity
- High
- Availability
- High
Exploit likelihood
What each source reports
NVD Score used
Apache Solr versions 6.6.0 to 6.6.6, 7.0.0 to 7.7.3 and 8.0.0 to 8.6.2 prevents some features considered dangerous (which could be used for remote code execution) to be configured in a ConfigSet that's uploaded via API without authentication/authorization. The checks in place to prevent such features can be circumvented by using a combination of UPLOAD/CREATE actions.
- Record
CVE-2020-13957- CVSS 3.1
- 9.8 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - CVSS 2.0
- 7.5 High
AV:N/AC:L/Au:N/C:P/I:P/A:P - Weakness
- CWE-863
- Updated
- 2026-11-02
CVE ListNo score
Apache Solr versions 6.6.0 to 6.6.6, 7.0.0 to 7.7.3 and 8.0.0 to 8.6.2 prevents some features considered dangerous (which could be used for remote code execution) to be configured in a ConfigSet that's uploaded via API without authentication/authorization. The checks in place to prevent such features can be circumvented by using a combination of UPLOAD/CREATE actions.
- Record
CVE-2020-13957- Updated
- 2026-11-02
EUVDEUVD-2022-0788No score
Apache Solr versions 6.6.0 to 6.6.6, 7.0.0 to 7.7.3 and 8.0.0 to 8.6.2 prevents some features considered dangerous (which could be used for remote code execution) to be configured in a ConfigSet that's uploaded via API without authentication/authorization. The checks in place to prevent such features can be circumvented by using a combination of UPLOAD/CREATE actions.
- Record
EUVD-2022-0788- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-3c7p-vv5r-cmr5
Incorrect Authorization in Apache Solr
Apache Solr versions 6.6.0 to 6.6.6, 7.0.0 to 7.7.3 and 8.0.0 to 8.6.2 prevents some features considered dangerous (which could be used for remote code execution) to be configured in a ConfigSet that's uploaded via API without authentication/authorization. The checks in place to prevent such features can be circumvented by using a combination of UPLOAD/CREATE actions. This issue is patched in 8.6.3.
- Record
GHSA-3c7p-vv5r-cmr5- CVSS 3.1
- 9.8 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - Weakness
- CWE-863
- Updated
- 2026-11-02
OSV
Apache Solr versions 6.6.0 to 6.6.6, 7.0.0 to 7.7.3 and 8.0.0 to 8.6.2 prevents some features considered dangerous (which could be used for remote code execution) to be configured in a ConfigSet that's uploaded via API without authentication/authorization. The checks in place to prevent such features can be circumvented by using a combination of UPLOAD/CREATE actions.
- Record
CVE-2020-13957- CVSS 3.1
- 9.8 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - Updated
- 2026-11-02
OSVGHSA-3c7p-vv5r-cmr5
Incorrect Authorization in Apache Solr
Apache Solr versions 6.6.0 to 6.6.6, 7.0.0 to 7.7.3 and 8.0.0 to 8.6.2 prevents some features considered dangerous (which could be used for remote code execution) to be configured in a ConfigSet that's uploaded via API without authentication/authorization. The checks in place to prevent such features can be circumvented by using a combination of UPLOAD/CREATE actions. This issue is patched in 8.6.3.
- Record
GHSA-3c7p-vv5r-cmr5- CVSS 3.1
- 9.8 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - Weakness
- CWE-863
- Updated
- 2026-11-02
Show 4 moreShow less
OSVBIT-solr-2020-13957No score
Apache Solr versions 6.6.0 to 6.6.6, 7.0.0 to 7.7.3 and 8.0.0 to 8.6.2 prevents some features considered dangerous (which could be used for remote code execution) to be configured in a ConfigSet that's uploaded via API without authentication/authorization. The checks in place to prevent such features can be circumvented by using a combination of UPLOAD/CREATE actions.
- Record
BIT-solr-2020-13957- Updated
- 2026-11-02
OSVCLSA-2026-1794298502No score
TuxCare security update for org.apache.solr:solr-solrj (1 CVE)
TuxCare rebuilt org.apache.solr:solr-solrj to address 1 CVE. Fixed in 8.5.2-tuxcare.6.
- Record
CLSA-2026-1794298502- Updated
- 2026-11-10
OSVCLSA-2026-1794418162No score
TuxCare security update for org.apache.solr (5 CVEs)
TuxCare rebuilt 3 org.apache.solr packages to address 5 CVEs. Fixed in 7.7.2-tuxcare.1.
- Record
CLSA-2026-1794418162- Updated
- 2026-11-12
OSVCLSA-2026-1794486844No score
TuxCare security update for org.apache.solr (5 CVEs)
TuxCare rebuilt 14 org.apache.solr packages to address 5 CVEs. Fixed in 7.7.3-tuxcare.1.
- Record
CLSA-2026-1794486844- Updated
- 2026-11-12
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
org.apache.solr:solr-parentMaven | 6.6.0 up to 8.6.3 | 8.6.3 |
org.apache.solr:solr-solrjMaven | 6.6.0 up to 8.6.3 | 8.6.3 |
org.apache.solr:solr-coreMaven | 6.6.0 up to 8.6.3 | 8.6.3 |
solrBitnami | 6.6.0 up to 6.6.7, 7.0.0 up to 7.7.4, 8.0.0 up to 8.6.3 | 6.6.77.7.48.6.3 |
org.apache.solr:solr-solrjTuxCare:Maven | 8.5.2 up to 8.5.2-tuxcare.6, plus listed versions 8.5.2-tuxcare.18.5.2-tuxcare.28.5.2-tuxcare.38.5.2-tuxcare.48.5.2-tuxcare.5 | 8.5.2-tuxcare.6 |
org.apache.solr:solr-coreTuxCare:Maven From an advisory covering 5 CVEs | 7.7.2 up to 7.7.2-tuxcare.1 | 7.7.2-tuxcare.1 |
org.apache.solr:solr-parentTuxCare:Maven From an advisory covering 5 CVEs | 7.7.2 up to 7.7.2-tuxcare.1 | 7.7.2-tuxcare.1 |
org.apache.solr:solr-solrjTuxCare:Maven From an advisory covering 5 CVEs | 7.7.2 up to 7.7.2-tuxcare.1 | 7.7.2-tuxcare.1 |
org.apache.solr:solr-analysis-extrasTuxCare:Maven From an advisory covering 5 CVEs | 7.7.3 up to 7.7.3-tuxcare.1 | 7.7.3-tuxcare.1 |
org.apache.solr:solr-analyticsTuxCare:Maven From an advisory covering 5 CVEs | 7.7.3 up to 7.7.3-tuxcare.1 | 7.7.3-tuxcare.1 |
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| Package | Affected | Fixed |
|---|---|---|
org.apache.solr:solr-cellTuxCare:Maven From an advisory covering 5 CVEs | 7.7.3 up to 7.7.3-tuxcare.1 | 7.7.3-tuxcare.1 |
org.apache.solr:solr-clusteringTuxCare:Maven From an advisory covering 5 CVEs | 7.7.3 up to 7.7.3-tuxcare.1 | 7.7.3-tuxcare.1 |
org.apache.solr:solr-coreTuxCare:Maven From an advisory covering 5 CVEs | 7.7.3 up to 7.7.3-tuxcare.1 | 7.7.3-tuxcare.1 |
org.apache.solr:solr-dataimporthandlerTuxCare:Maven From an advisory covering 5 CVEs | 7.7.3 up to 7.7.3-tuxcare.1 | 7.7.3-tuxcare.1 |
org.apache.solr:solr-dataimporthandler-extrasTuxCare:Maven From an advisory covering 5 CVEs | 7.7.3 up to 7.7.3-tuxcare.1 | 7.7.3-tuxcare.1 |
org.apache.solr:solr-langidTuxCare:Maven From an advisory covering 5 CVEs | 7.7.3 up to 7.7.3-tuxcare.1 | 7.7.3-tuxcare.1 |
org.apache.solr:solr-ltrTuxCare:Maven From an advisory covering 5 CVEs | 7.7.3 up to 7.7.3-tuxcare.1 | 7.7.3-tuxcare.1 |
org.apache.solr:solr-parentTuxCare:Maven From an advisory covering 5 CVEs | 7.7.3 up to 7.7.3-tuxcare.1 | 7.7.3-tuxcare.1 |
org.apache.solr:solr-prometheus-exporterTuxCare:Maven From an advisory covering 5 CVEs | 7.7.3 up to 7.7.3-tuxcare.1 | 7.7.3-tuxcare.1 |
org.apache.solr:solr-solrjTuxCare:Maven From an advisory covering 5 CVEs | 7.7.3 up to 7.7.3-tuxcare.1 | 7.7.3-tuxcare.1 |
org.apache.solr:solr-test-frameworkTuxCare:Maven From an advisory covering 5 CVEs | 7.7.3 up to 7.7.3-tuxcare.1 | 7.7.3-tuxcare.1 |
org.apache.solr:solr-velocityTuxCare:Maven From an advisory covering 5 CVEs | 7.7.3 up to 7.7.3-tuxcare.1 | 7.7.3-tuxcare.1 |
org.apache.solr:solr-parentMaven | 6.6.0 up to 8.6.3, plus listed versions 6.6.16.6.26.6.36.6.46.6.5 Show 29 moreShow less6.6.67.0.07.0.17.1.07.2.07.2.17.3.07.3.17.4.07.5.07.6.07.7.07.7.17.7.27.7.38.0.08.1.08.1.18.2.08.3.08.3.18.4.08.4.18.5.08.5.18.5.28.6.08.6.18.6.2 | 8.6.3 |
org.apache.solr:solr-solrjMaven | 6.6.0 up to 8.6.3, plus listed versions 6.6.16.6.26.6.36.6.46.6.5 Show 29 moreShow less6.6.67.0.07.0.17.1.07.2.07.2.17.3.07.3.17.4.07.5.07.6.07.7.07.7.17.7.27.7.38.0.08.1.08.1.18.2.08.3.08.3.18.4.08.4.18.5.08.5.18.5.28.6.08.6.18.6.2 | 8.6.3 |
org.apache.solr:solr-coreMaven | 6.6.0 up to 8.6.3, plus listed versions 6.6.16.6.26.6.36.6.46.6.5 Show 29 moreShow less6.6.67.0.07.0.17.1.07.2.07.2.17.3.07.3.17.4.07.5.07.6.07.7.07.7.17.7.27.7.38.0.08.1.08.1.18.2.08.3.08.3.18.4.08.4.18.5.08.5.18.5.28.6.08.6.18.6.2 | 8.6.3 |
Public exploits
Links only. Every CVE stores no exploit code.
| Source | Link | Date |
|---|---|---|
| PoC in GitHub | s-index/CVE-2020-13957 | 2021-05-09 |
History
| Recorded | Changed | Sources |
|---|---|---|
| affected, aliases | OSV | |
| affected, aliases | OSV | |
| affected, aliases, facts | OSV | |
| aliases, products | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD, OSV, PoC in GitHub |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2020-13957 is a critical vulnerability (CVSS 9.8) in Apache Solr, published October 13, 2020. Public exploit code exists. EPSS puts the chance of exploitation in the next 30 days at 79.3%, the 99th percentile. Fixed in org.apache.solr:solr-parent 8.6.3.
References
mail-archives.us.apache.org/mod_mbox/www-announce/202010.mbox/%3CCAECwjAWCVLoVaZy%3DTNRQ6Wk9KWVxdPRiGS8NT%2BPHMJCxbbsEVg%40mail.gmail.com%3E
lists.apache.org/thread.html/r226c1112bb41e7cd427862d875eff9877a20a40242c2542f4dd39e4a%40%3Cissues.lucene.apache.org%3E
security.netapp.com/advisory/ntap-20201023-0002
Show 40 moreShow less
nvd.nist.gov/vuln/detail/CVE-2020-13957
github.com/apache/solr/commit/e001c2221812a0ba9e9378855040ce72f93eced4