--- title: "CVE-2020-13957: Apache Solr vulnerability | CubePath" description: "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…" language: en source: https://cubepath.com/security/cve/CVE-2020-13957 --- # CVE-2020-13957: Apache Solr vulnerability | CubePath ## Description 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. Official description from the CVE record, published by apache. Copyright © 1999-2026 The MITRE Corporation. See [/security/cve/legal](https://cubepath.com/security/cve/legal) for the CVE license. [View the record on cve.org](https://www.cve.org/CVERecord?id=CVE-2020-13957) ## Key data ### EPSS Exploit Prediction Scoring System by FIRST: an estimate of the probability that exploitation activity will be observed in the next 30 days. Score 0.79342 (79.3% probability) Percentile 99.6% Scores of Nov 10, 2026 Model v2026.06.15 ## Affected products Products listed in the CVE record, as the CNA published them. - Apache Solr - affected: Apache Solr 6.6.0 to 6.6.6, 7.0.0 to 7.7.3, 8.0.0 to 8.6.2 ## References Links listed in the CVE record. They lead to other sites, which CubePath does not control. - [mail-archives.us.apache.org/mod\_mbox/www-announce/202010.mb…](https://mail-archives.us.apache.org/mod%5Fmbox/www-announce/202010.mbox/%3CCAECwjAWCVLoVaZy%3DTNRQ6Wk9KWVxdPRiGS8NT%2BPHMJCxbbsEVg%40mail.gmail.com%3E) - [\[lucene-issues\] 20201013 \[jira\] \[Updated\] (SOLR-14925) CVE-2020-13957: The checks added to unauthenticated configset uploads can be circumvented](https://lists.apache.org/thread.html/r226c1112bb41e7cd427862d875eff9877a20a40242c2542f4dd39e4a%40%3Cissues.lucene.apache.org%3E) (lists.apache.org) mailing-list - [\[lucene-issues\] 20201019 \[GitHub\] \[lucene-site\] tflobbe opened a new pull request #31: Add CVE-2020-13957 page](https://lists.apache.org/thread.html/r4ca8ba5980d9049cf3707798aa3116ee76c1582f171ff452ad2ca75e%40%3Cissues.lucene.apache.org%3E) (lists.apache.org) mailing-list - [security.netapp.com/advisory/ntap-20201023-0002](https://security.netapp.com/advisory/ntap-20201023-0002/) - [\[lucene-issues\] 20201029 \[jira\] \[Commented\] (SOLR-14925) CVE-2020-13957: The checks added to unauthenticated configset uploads can be circumvented](https://lists.apache.org/thread.html/r8b1782d42d0a4ce573495d5d9345ad328d652c68c411ccdb245c57e3%40%3Cissues.lucene.apache.org%3E) (lists.apache.org) mailing-list - [\[lucene-commits\] 20201030 \[lucene-site\] branch master updated: Add CVE-2020-13957 page (#31)](https://lists.apache.org/thread.html/r1c783d3d81ba62f3381a17a4d6c826f7dead3a132ba42349c90df075%40%3Ccommits.lucene.apache.org%3E) (lists.apache.org) mailing-list - [\[lucene-issues\] 20201030 \[GitHub\] \[lucene-site\] tflobbe merged pull request #31: Add CVE-2020-13957 page](https://lists.apache.org/thread.html/r7512ae552cd9d14ab8b1bc0a7e95f2ec52ae85364f068d4034398ede%40%3Cissues.lucene.apache.org%3E) (lists.apache.org) mailing-list - [\[lucene-commits\] 20201030 \[lucene-site\] 02/02: Add CVE-2020-13957 page (#31)](https://lists.apache.org/thread.html/r9d7356f209ee30d702b6a921c866564eb2e291b126640c7ab70feea7%40%3Ccommits.lucene.apache.org%3E) (lists.apache.org) mailing-list - [\[lucene-issues\] 20201030 \[GitHub\] \[lucene-site\] tflobbe opened a new pull request #32: Publish: Add CVE-2020-13957 page (#31)](https://lists.apache.org/thread.html/r5557641fcf5cfd99260a7037cfbc8788fb546b72c98a900570edaa2e%40%3Cissues.lucene.apache.org%3E) (lists.apache.org) mailing-list - [\[lucene-issues\] 20201030 \[GitHub\] \[lucene-site\] tflobbe commented on pull request #32: Publish: Add CVE-2020-13957 page (#31)](https://lists.apache.org/thread.html/r3d1e24a73e6bffa1d6534e1f34c8f5cbd9999495e7d933640f4fa0ed%40%3Cissues.lucene.apache.org%3E) (lists.apache.org) mailing-list - [\[lucene-issues\] 20201030 \[GitHub\] \[lucene-site\] tflobbe closed pull request #32: Publish: Add CVE-2020-13957 page (#31)](https://lists.apache.org/thread.html/r13a728994c60be5b5a7049282b5c926dac1fc6a9a0b2362f6adfa573%40%3Cissues.lucene.apache.org%3E) (lists.apache.org) mailing-list - [\[lucene-issues\] 20201102 \[jira\] \[Commented\] (SOLR-14925) CVE-2020-13957: The checks added to unauthenticated configset uploads can be circumvented](https://lists.apache.org/thread.html/r2f8d33a4de07db9459fb2a98a1cd39747066137636b53f84a13e5628%40%3Cissues.lucene.apache.org%3E) (lists.apache.org) mailing-list - [\[lucene-issues\] 20201102 \[jira\] \[Updated\] (SOLR-14925) CVE-2020-13957: The checks added to unauthenticated configset uploads can be circumvented](https://lists.apache.org/thread.html/r853fdc6d0b91d5e01a26c7bd5becb044ad775a231703d634ca5d55c9%40%3Cissues.lucene.apache.org%3E) (lists.apache.org) mailing-list - [\[bigtop-dev\] 20210221 \[jira\] \[Created\] (BIGTOP-3507) Solr: CVE-2020-13957 mitigation backport](https://lists.apache.org/thread.html/r2236fdf99ac3efbfc36c2df96d3a88f822baa6f45e13fec7ff558e34%40%3Cdev.bigtop.apache.org%3E) (lists.apache.org) mailing-list - [\[bigtop-issues\] 20210221 \[jira\] \[Created\] (BIGTOP-3507) Solr: CVE-2020-13957 mitigation backport](https://lists.apache.org/thread.html/r999f828e6e37d9e825e207471cbfd2681c3befcd7f3abd59ed87c0d5%40%3Cissues.bigtop.apache.org%3E) (lists.apache.org) mailing-list - [\[bigtop-issues\] 20210222 \[jira\] \[Assigned\] (BIGTOP-3507) Solr: CVE-2020-13957 mitigation backport](https://lists.apache.org/thread.html/rb1de6ba50a468e9baff32a249edaa08f6bcec7dd7cc208e25e6b48c8%40%3Cissues.bigtop.apache.org%3E) (lists.apache.org) mailing-list - [\[bigtop-dev\] 20210225 \[GitHub\] \[bigtop\] JunHe77 opened a new pull request #743: BIGTOP-3507: CVE-2020-13957 mitigation backport](https://lists.apache.org/thread.html/rf1a32f00017e83ff29a74be2de02e28e4302dddb5f14c624e297a8c0%40%3Cdev.bigtop.apache.org%3E) (lists.apache.org) mailing-list - [\[bigtop-dev\] 20210301 \[GitHub\] \[bigtop\] iwasakims merged pull request #743: BIGTOP-3507: CVE-2020-13957 mitigation backport](https://lists.apache.org/thread.html/r2a6600fe9afd502c04d26fd112823ec3f3c3ad1b4a289d10567a78a0%40%3Cdev.bigtop.apache.org%3E) (lists.apache.org) mailing-list - [\[bigtop-issues\] 20210301 \[jira\] \[Resolved\] (BIGTOP-3507) Solr: CVE-2020-13957 mitigation backport](https://lists.apache.org/thread.html/r3da9895cea476bcee2557531bebd4e8f6f367dc3ea900a65e2f51cd8%40%3Cissues.bigtop.apache.org%3E) (lists.apache.org) mailing-list - [\[bigtop-commits\] 20210301 \[bigtop\] branch master updated: BIGTOP-3507: CVE-2020-13957 mitigation backport (#743)](https://lists.apache.org/thread.html/rb2f1c7fd3d3ea719dfac4706a80e6affddecae8663dda04e1335347f%40%3Ccommits.bigtop.apache.org%3E) (lists.apache.org) mailing-list - [\[bigtop-dev\] 20210301 \[GitHub\] \[bigtop\] JunHe77 commented on pull request #743: BIGTOP-3507: CVE-2020-13957 mitigation backport](https://lists.apache.org/thread.html/r622a043c2890327f8a4aea16b131e8a7137a282a004614369fceb224%40%3Cdev.bigtop.apache.org%3E) (lists.apache.org) mailing-list - [\[druid-commits\] 20210324 \[GitHub\] \[druid\] jihoonson opened a new pull request #11030: Suppress cves](https://lists.apache.org/thread.html/r1d4a247329a8478073163567bbc8c8cb6b49c6bfc2bf58153a857af1%40%3Ccommits.druid.apache.org%3E) (lists.apache.org) mailing-list ## Timeline 1. ID reserved Jun 8, 2020 2. Record published Oct 13, 2020 3. Record last updated Aug 4, 2024 ## Look up another CVE ## About CubePath CubePath is a cloud provider with data centers in Europe and the United States. It offers VPS, bare metal servers and DDoS protection. [Cloud VPS](https://cubepath.com/vps) [DDoS protection](https://cubepath.com/ddos-protection) Data from the CVE Program (MITRE), CISA KEV and FIRST EPSS. CVSS is owned by FIRST and used by permission. Not affiliated with or endorsed by MITRE, CISA or FIRST. Data as of Nov 10, 2026, 20:05 UTC. [Sources and licenses](https://cubepath.com/security/cve/legal)