{"id":"CVE-2020-9492","url":"https://www.cyber-defence.io/tools/cve/CVE-2020-9492","generatedAt":"2026-10-27T23:42:12.897Z","title":"In Apache Hadoop 3.2.0 to 3.2.1, 3.0.0-alpha1 to 3.1.3, and 2.0.0-alpha to 2.10.0, WebHDFS client might send SPNEGO authorization header to remote URL without proper verification.","description":"In Apache Hadoop 3.2.0 to 3.2.1, 3.0.0-alpha1 to 3.1.3, and 2.0.0-alpha to 2.10.0, WebHDFS client might send SPNEGO authorization header to remote URL without proper verification.","published":"2021-01-26T18:16:10.000Z","lastModified":"2026-06-17T03:28:04.000Z","status":"Modified","sourceIdentifier":"security@apache.org","cvss":{"version":"3.1","score":8.8,"severity":"HIGH","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"},"cwe":["CWE-863"],"affected":["apache/hadoop","apache/solr","oracle/financial services crime and compliance management studio"],"epss":{"score":0.04493,"percentile":0.91423,"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":"high","text":"High impact if exploited, but EPSS currently rates exploitation as unlikely (4.49%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit."},"changes":[],"references":[{"url":"https://lists.apache.org/thread.html/r0a534f1cde7555f7208e9f9b791c1ab396d215eaaef283b3a9153429%40%3Ccommits.druid.apache.org%3E","source":"security@apache.org"},{"url":"https://lists.apache.org/thread.html/r49c9ab444ab1107c6a8be8a0d66602dec32a16d96c2631fec8d309fb%40%3Cissues.solr.apache.org%3E","source":"security@apache.org"},{"url":"https://lists.apache.org/thread.html/r4a57de5215494c35c8304cf114be75d42df7abc6c0c54bf163c3e370%40%3Cissues.solr.apache.org%3E","source":"security@apache.org"},{"url":"https://lists.apache.org/thread.html/r513758942356ccd0d14538ba18a09903fc72716d74be1cb727ea91ff%40%3Cgeneral.hadoop.apache.org%3E","tags":["Mailing List","Vendor 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Party Advisory"],"source":"security@apache.org"},{"url":"https://www.oracle.com/security-alerts/cpujul2022.html","tags":["Patch","Third Party Advisory"],"source":"security@apache.org"},{"url":"https://lists.apache.org/thread.html/r0a534f1cde7555f7208e9f9b791c1ab396d215eaaef283b3a9153429%40%3Ccommits.druid.apache.org%3E","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://lists.apache.org/thread.html/r49c9ab444ab1107c6a8be8a0d66602dec32a16d96c2631fec8d309fb%40%3Cissues.solr.apache.org%3E","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://lists.apache.org/thread.html/r4a57de5215494c35c8304cf114be75d42df7abc6c0c54bf163c3e370%40%3Cissues.solr.apache.org%3E","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://lists.apache.org/thread.html/r513758942356ccd0d14538ba18a09903fc72716d74be1cb727ea91ff%40%3Cgeneral.hadoop.apache.org%3E","tags":["Mailing List","Vendor 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Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://www.oracle.com/security-alerts/cpujul2022.html","tags":["Patch","Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2020-9492","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."}