{"id":"CVE-2020-1745","aliases":["GHSA-gv2w-88hx-8m9r"],"url":"https://o3.security/vulnerability/CVE-2020-1745","summary":"Improper Authorization in Undertoe","details":"A file inclusion vulnerability was found in the AJP connector enabled with a default AJP configuration port of 8009 in Undertow version 2.0.29.Final and before and was fixed in 2.0.30.Final. A remote, unauthenticated attacker could exploit this vulnerability to read web application files from a vulnerable server. In instances where the vulnerable server allows file uploads, an attacker could upload malicious JavaServer Pages (JSP) code within a variety of file types and trigger this vulnerability to gain remote code execution.","published":"2020-04-28T15:15:13.037Z","modified":"2026-07-09T00:21:24.370852Z","cvss":{"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"},"epss":{"score":0.04837,"percentile":0.91399,"asOf":"2026-09-04"},"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"Maven","name":"io.undertow:undertow-core","fixedVersion":"2.0.30"}],"fix":null,"references":[{"type":"WEB","url":"https://meterpreter.org/cve-2020-1938-apache-tomcat-ajp-connector-remote-code-execution-vulnerability-alert/"},{"type":"WEB","url":"https://www.cnvd.org.cn/webinfo/show/5415"},{"type":"ADVISORY","url":"https://security.netapp.com/advisory/ntap-20240216-0011/"},{"type":"REPORT","url":"https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2020-1745"},{"type":"ARTICLE","url":"https://www.tenable.com/blog/cve-2020-1938-ghostcat-apache-tomcat-ajp-file-readinclusion-vulnerability-cnvd-2020-10487"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-07-09T00:21:24.370852Z"}}