{"id":"CVE-2024-45216","url":"https://www.cyber-defence.io/tools/cve/CVE-2024-45216","generatedAt":"2026-11-04T21:14:28.340Z","title":"Improper Authentication vulnerability in Apache Solr.","description":"Improper Authentication vulnerability in Apache Solr.\n\nSolr instances using the PKIAuthenticationPlugin, which is enabled by default when Solr Authentication is used, are vulnerable to Authentication bypass.\nA fake ending at the end of any Solr API URL path, will allow requests to skip Authentication while maintaining the API contract with the original URL Path.\nThis fake ending looks like an unprotected API path, however it is stripped off internally after authentication but before API routing.\n\n\nThis issue affects Apache Solr: from 5.3.0 before 8.11.4, from 9.0.0 before 9.7.0.\n\nUsers are recommended to upgrade to version 9.7.0, or 8.11.4, which fix the issue.","published":"2024-10-16T08:15:05.000Z","lastModified":"2026-06-17T07:53:48.000Z","status":"Analyzed","sourceIdentifier":"security@apache.org","cvss":{"version":"3.1","score":9.8,"severity":"CRITICAL","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"},"cwe":["CWE-287","CWE-863"],"affected":["apache/solr"],"epss":{"score":0.92747,"percentile":0.99828,"date":"2026-11-03","history":[{"date":"2026-09-27","score":0.92747,"percentile":0.99826}]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"urgent","text":"EPSS puts the probability of exploitation in the next 30 days at 92.7%, higher than 100% of all known CVEs. Patch or mitigate before the next change window."},"changes":[],"references":[{"url":"https://solr.apache.org/security.html#cve-2024-45216-apache-solr-authentication-bypass-possible-using-a-fake-url-path-ending","tags":["Vendor Advisory"],"source":"security@apache.org"},{"url":"http://www.openwall.com/lists/oss-security/2024/10/15/8","tags":["Mailing List"],"source":"af854a3a-2127-422b-91ae-364da2661108"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2024-45216","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."}