{"id":"CVE-2020-1958","url":"https://www.cyber-defence.io/tools/cve/CVE-2020-1958","generatedAt":"2026-10-27T23:43:44.014Z","title":"When LDAP authentication is enabled in Apache Druid 0.17.0, callers of Druid APIs with a valid set of LDAP credentials can bypass the credentialsValidator.userSearch filter barrier that determines if a valid LDAP user is allowed to authenticate with…","description":"When LDAP authentication is enabled in Apache Druid 0.17.0, callers of Druid APIs with a valid set of LDAP credentials can bypass the credentialsValidator.userSearch filter barrier that determines if a valid LDAP user is allowed to authenticate with Druid. They are still subject to role-based authorization checks, if configured. Callers of Druid APIs can also retrieve any LDAP attribute values of users that exist on the LDAP server, so long as that information is visible to the Druid server. This information disclosure does not require the caller itself to be a valid LDAP user.","published":"2020-04-01T22:15:17.000Z","lastModified":"2026-06-17T03:02:43.000Z","status":"Modified","sourceIdentifier":"security@apache.org","cvss":{"version":"3.1","score":6.5,"severity":"MEDIUM","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N"},"cwe":["CWE-74"],"affected":["apache/druid"],"epss":{"score":0.04565,"percentile":0.91544,"date":"2026-10-26","history":[]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"low","text":"Lower severity and a low EPSS score (4.57%). Track it; it rarely justifies an emergency change on its own."},"changes":[],"references":[{"url":"https://lists.apache.org/thread.html/r026540c617d334007810cd8f0068f617b5c78444be00a31fc1b03390%40%3Ccommits.druid.apache.org%3E","source":"security@apache.org"},{"url":"https://lists.apache.org/thread.html/r1526dbce98a138629a41daa06c13393146ddcaf8f9d273cc49d57681%40%3Ccommits.druid.apache.org%3E","source":"security@apache.org"},{"url":"https://lists.apache.org/thread.html/r1c32c95543d44559b8d7fd89b0a85f728c80e8b715685bbf788a15a4%40%3Ccommits.druid.apache.org%3E","source":"security@apache.org"},{"url":"https://lists.apache.org/thread.html/r47c90a378efdb3fd07ff7f74095b8eb63b3ca93b8ada5c2661c5e371%40%3Ccommits.druid.apache.org%3E","source":"security@apache.org"},{"url":"https://lists.apache.org/thread.html/r75e74d39c41c1b95a658b6a9f75fc6fd02b1d1922566a0ee4ee2fdfc%40%3Ccommits.druid.apache.org%3E","source":"security@apache.org"},{"url":"https://lists.apache.org/thread.html/r9d437371793b410f8a8e18f556d52d4bb68e18c537962f6a97f4945e%40%3Cdev.druid.apache.org%3E","tags":["Mailing List","Vendor Advisory"],"source":"security@apache.org"},{"url":"https://lists.apache.org/thread.html/rf70876ecafb45b314eff9d040c5281c4adb0cb7771eb029448cfb79b%40%3Cannounce.apache.org%3E","source":"security@apache.org"},{"url":"https://lists.apache.org/thread.html/rffabc9e83cc2831bbee5db32b3965b84b09346a26ebc1012db63d28c%40%3Ccommits.druid.apache.org%3E","source":"security@apache.org"},{"url":"https://lists.apache.org/thread.html/r026540c617d334007810cd8f0068f617b5c78444be00a31fc1b03390%40%3Ccommits.druid.apache.org%3E","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://lists.apache.org/thread.html/r1526dbce98a138629a41daa06c13393146ddcaf8f9d273cc49d57681%40%3Ccommits.druid.apache.org%3E","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://lists.apache.org/thread.html/r1c32c95543d44559b8d7fd89b0a85f728c80e8b715685bbf788a15a4%40%3Ccommits.druid.apache.org%3E","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://lists.apache.org/thread.html/r47c90a378efdb3fd07ff7f74095b8eb63b3ca93b8ada5c2661c5e371%40%3Ccommits.druid.apache.org%3E","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://lists.apache.org/thread.html/r75e74d39c41c1b95a658b6a9f75fc6fd02b1d1922566a0ee4ee2fdfc%40%3Ccommits.druid.apache.org%3E","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://lists.apache.org/thread.html/r9d437371793b410f8a8e18f556d52d4bb68e18c537962f6a97f4945e%40%3Cdev.druid.apache.org%3E","tags":["Mailing List","Vendor Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://lists.apache.org/thread.html/rf70876ecafb45b314eff9d040c5281c4adb0cb7771eb029448cfb79b%40%3Cannounce.apache.org%3E","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://lists.apache.org/thread.html/rffabc9e83cc2831bbee5db32b3965b84b09346a26ebc1012db63d28c%40%3Ccommits.druid.apache.org%3E","source":"af854a3a-2127-422b-91ae-364da2661108"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2020-1958","epss":"https://www.first.org/epss/","kev":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","exploitdb":"https://www.exploit-db.com/"},"licence":"CC BY 4.0 — link back to the CVE Explorer if you publish the results; upstream data remains subject to its own terms."}