What’s Vulnerable › Vulnerabilities
CVE-2020-13957
- Severity: critical (CVSS 9.8 v3.1)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 79.3% probability of exploitation in the next 30 days
- Public exploit or detection template: none known
- Published: 2020-10-13 · updated 2026-06-17
- Weakness: CWE-863
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.
Affected products
- Apache Software Foundation Apache Solr: from 6.6.0 through 6.6.6; from 7.0.0 through 7.7.3; from 8.0.0 through 8.6.2
References
- https://lists.apache.org/thread.html/r13a728994c60be5b5a7049282b5c926dac1fc6a9a0b2362f6adfa573%40%3Cissues.lucene.apache.org%3E
- https://lists.apache.org/thread.html/r1c783d3d81ba62f3381a17a4d6c826f7dead3a132ba42349c90df075%40%3Ccommits.lucene.apache.org%3E
- https://lists.apache.org/thread.html/r1d4a247329a8478073163567bbc8c8cb6b49c6bfc2bf58153a857af1%40%3Ccommits.druid.apache.org%3E
- https://lists.apache.org/thread.html/r2236fdf99ac3efbfc36c2df96d3a88f822baa6f45e13fec7ff558e34%40%3Cdev.bigtop.apache.org%3E
- https://lists.apache.org/thread.html/r226c1112bb41e7cd427862d875eff9877a20a40242c2542f4dd39e4a%40%3Cissues.lucene.apache.org%3E
- https://lists.apache.org/thread.html/r2a6600fe9afd502c04d26fd112823ec3f3c3ad1b4a289d10567a78a0%40%3Cdev.bigtop.apache.org%3E
- https://lists.apache.org/thread.html/r2f8d33a4de07db9459fb2a98a1cd39747066137636b53f84a13e5628%40%3Cissues.lucene.apache.org%3E
- https://lists.apache.org/thread.html/r3d1e24a73e6bffa1d6534e1f34c8f5cbd9999495e7d933640f4fa0ed%40%3Cissues.lucene.apache.org%3E
- https://lists.apache.org/thread.html/r3da9895cea476bcee2557531bebd4e8f6f367dc3ea900a65e2f51cd8%40%3Cissues.bigtop.apache.org%3E
- https://lists.apache.org/thread.html/r4ca8ba5980d9049cf3707798aa3116ee76c1582f171ff452ad2ca75e%40%3Cissues.lucene.apache.org%3E
- https://lists.apache.org/thread.html/r5557641fcf5cfd99260a7037cfbc8788fb546b72c98a900570edaa2e%40%3Cissues.lucene.apache.org%3E
- https://lists.apache.org/thread.html/r622a043c2890327f8a4aea16b131e8a7137a282a004614369fceb224%40%3Cdev.bigtop.apache.org%3E
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