Skip to content
Fencer Vulns
critical 9.8

CVE-2020-13957 in the critical feed json

Incorrect Authorization in Apache Solr

published 2020-10-13 6 y ago modified 2026-09-08 2 mo ago also BIT-solr-2020-13957 , EUVD-2022-0788 , GHSA-3c7p-vv5r-cmr5

cvss
9.8
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
79.3%
EPSS 79.3% chance of exploitation in 30 days, percentile 99.6%
public exploits
0
none known

Summary

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.

Patch / fix

  • maven org.apache.solr:solr-parent 8.6.3
  • maven org.apache.solr:solr-solrj 8.6.3
  • maven org.apache.solr:solr-core 8.6.3
  • bitnami solr 6.6.7, 7.7.4, 8.6.3

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2020-13957 updated cvss 9.8

solr: The checks added to unauthenticated configset uploads can be circumvented

  • Red Hat Fuse 7 camel-solr camel-solr Red Hat Integration Camel K 1 camel-solr camel-solr Red Hat JBoss Data Virtualization 6 solr-core Red Hat JBoss Enterprise Application Platform 6 solr-core Red Hat JBoss Fuse 6 solr-core Red Hat JBoss Fuse Service Works 6 solr-core
    not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Exploit prediction

79.34% chance of exploitation in the next 30 days, higher than 99.6% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
GitHub 3.1 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
NVD 3.1 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
NVD 2.0 7.5 AV:N/AC:L/Au:N/C:P/I:P/A:P
OSV 3.1 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected packages

ecosystem package affected fixed in
maven org.apache.solr:solr-parent
>=6.6.0, <8.6.3
8.6.3
maven org.apache.solr:solr-solrj
>=6.6.0, <8.6.3
8.6.3
maven org.apache.solr:solr-core
>=6.6.0, <8.6.3
8.6.3
bitnami solr
>=6.6.0, <6.6.7
>=7.0.0, <7.7.4
>=8.0.0, <8.6.3
6.6.7
7.7.4
8.6.3

Affected products

  • n/a Apache Solr

Classification

Weakness

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.