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by Redhat is a technology product with 174 tracked versions and 37 known security vulnerabilities. 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traversal vulnerability in JBoss Undertow 1.0.x before 1.0.17, 1.1.x before 1.1.0.CR5, and 1.2.x before 1.2.0.Beta3, when running on Windows, allows remote attackers to read arbitrary files via a .. (dot dot) in a resource URI.","2014-12-01",5,"v2","Medium",0.25082,{"cveId":552,"description":553,"publishedDate":554,"cvssScore":555,"cvssVersion":556,"severity":557,"isKev":16,"epssScore":558},"CVE-2020-1745","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.","2020-04-28",9.8,"v3.1","Critical",0.04957,{"cveId":560,"description":561,"publishedDate":562,"cvssScore":563,"cvssVersion":564,"severity":565,"isKev":16,"epssScore":566},"CVE-2017-2670","It was found in Undertow before 1.3.28 that with non-clean TCP close, the Websocket server gets into infinite loop on every IO thread, effectively causing DoS.","2018-07-27",7.5,"v3.0","High",0.03616,{"cveId":568,"description":569,"publishedDate":570,"cvssScore":563,"cvssVersion":556,"severity":565,"isKev":16,"epssScore":571},"CVE-2019-10184","undertow before version 2.0.23.Final is vulnerable to an information leak issue. Web apps may have their directory structures predicted through requests without trailing slashes via the api.","2019-07-25",0.03478,{"cveId":573,"description":574,"publishedDate":562,"cvssScore":575,"cvssVersion":564,"severity":549,"isKev":16,"epssScore":576},"CVE-2017-2666","It was discovered in Undertow that the code that parsed the HTTP request line permitted invalid characters. This could be exploited, in conjunction with a proxy that also permitted the invalid characters but with a different interpretation, to inject data into the HTTP response. By manipulating the HTTP response the attacker could poison a web-cache, perform an XSS attack, or obtain sensitive information from requests other than their own.",6.5,0.03095,{"cveId":578,"description":579,"publishedDate":580,"cvssScore":555,"cvssVersion":556,"severity":557,"isKev":16,"epssScore":581},"CVE-2019-3888","A vulnerability was found in Undertow web server before 2.0.21. An information exposure of plain text credentials through log files because Connectors.executeRootHandler:402 logs the HttpServerExchange object at ERROR level using UndertowLogger.REQUEST_LOGGER.undertowRequestFailed(t, exchange)","2019-06-12",0.03028,{"cveId":583,"description":584,"publishedDate":585,"cvssScore":563,"cvssVersion":556,"severity":565,"isKev":16,"epssScore":586},"CVE-2023-3223","A flaw was found in undertow. Servlets annotated with @MultipartConfig may cause an OutOfMemoryError due to large multipart content. This may allow unauthorized users to cause remote Denial of Service (DoS) attack. If the server uses fileSizeThreshold to limit the file size, it's possible to bypass the limit by setting the file name in the request to null.","2023-09-27",0.02659,{"cveId":588,"description":589,"publishedDate":590,"cvssScore":575,"cvssVersion":564,"severity":549,"isKev":16,"epssScore":591},"CVE-2018-1114","It was found that URLResource.getLastModified() in Undertow closes the file descriptors only when they are finalized which can cause file descriptors to exhaust. This leads to a file handler leak.","2018-09-11",0.02329,{"cveId":593,"description":594,"publishedDate":595,"cvssScore":563,"cvssVersion":556,"severity":565,"isKev":16,"epssScore":596},"CVE-2025-9784","A flaw was found in Undertow where malformed client requests can trigger server-side stream resets without triggering abuse counters. This issue, referred to as the \"MadeYouReset\" attack, allows malicious clients to induce excessive server workload by repeatedly causing server-side stream aborts. While not a protocol bug, this highlights a common implementation weakness that can be exploited to cause a denial of service (DoS).","2025-09-02",0.02325,{"cveId":598,"description":599,"publishedDate":600,"cvssScore":563,"cvssVersion":556,"severity":565,"isKev":16,"epssScore":601},"CVE-2019-14888","A vulnerability was found in the Undertow HTTP server in versions before 2.0.28.SP1 when listening on HTTPS. An attacker can target the HTTPS port to carry out a Denial Of Service (DOS) to make the service unavailable on SSL.","2020-01-23",0.02137,[],{"title":604,"metaDescription":605,"keywords":606,"structuredData":607},"Undertow by Redhat - Security Vulnerabilities & Analysis | Precursor Intelligence","Comprehensive security analysis for Undertow by Redhat covering 174 versions with 37 tracked vulnerabilities. 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