io.undertow:undertow-core
Maven38 known CVEs affecting this package
Aggregated from OSV, GitHub Security Advisories, NVD, and vendor advisories. Each CVE links to its full detail page with vendor advisories, patches, fixed versions, and remediation guidance.
CVEs affecting io.undertow:undertow-corepage 1 of 1
- CVE-2014-7816MEDIUMCVSS v2 5.0EG 5.0fixed in 1.0.17, 1.1.0.CR5 or 1.2.0.Beta3, by version range2014-12-01
vulnerable: 1.2.0.Beta1, 1.2.0.Beta2
Directory 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.
- CVE-2016-7046MEDIUMCVSS 5.9EG 5.9fixed in 1.4.3.Final or 1.3.25.Final, by version range2016-10-03
vulnerable: 1.0.0.Alpha1 ... 1.3.9.Final (171 versions)
Red Hat JBoss Enterprise Application Platform (EAP) 7, when operating as a reverse-proxy with default buffer sizes, allows remote attackers to cause a denial of service (CPU and disk consumption) via a long URL.
- CVE-2017-12165LOWCVSS 2.6EG 2.6fixed in 1.3.31, 1.4.17 or 2.0.0.Beta1, by version range2018-07-27
vulnerable: 2.0.0.Alpha1
It was discovered that Undertow before 1.4.17, 1.3.31 and 2.0.0 processes http request headers with unusual whitespaces which can cause possible http request smuggling.
- CVE-2017-12196MEDIUMCVSS 4.8EG 4.8fixed in 2.0.2.FInal or 1.4.24.Final, by version range2018-04-18
vulnerable: 1.0.0.Alpha1 ... 1.4.9.Final (209 versions)
undertow before versions 1.4.18.SP1, 2.0.2.Final, 1.4.24.Final was found vulnerable when using Digest authentication, the server does not ensure that the value of URI in the Authorization header matches the URI in HTTP request line. This a…
- CVE-2017-2666MEDIUMCVSS 6.5EG 6.5fixed in 1.3.31 or 1.4.17, by version range2018-07-27
vulnerable: 1.4.0.Final ... 1.4.9.Final (17 versions)
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…
- CVE-2017-2670HIGHCVSS 7.5EG 7.5fixed in 1.3.282018-07-27
vulnerable: 1.0.0.Alpha1 ... 1.3.9.Final (174 versions)
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.
- CVE-2017-7559MEDIUMCVSS 6.1EG 6.1fixed in 1.4.17.Final, 1.3.31.Final or 2.0.0.Alpha2, by version range2018-01-10
vulnerable: 2.0.0.Alpha1
In Undertow 2.x before 2.0.0.Alpha2, 1.4.x before 1.4.17.Final, and 1.3.x before 1.3.31.Final, it was found that the fix for CVE-2017-2666 was incomplete and invalid characters are still allowed in the query string and path parameters. Thi…
- CVE-2018-1114MEDIUMCVSS 6.5EG 6.5fixed in 1.4.25.Final or 2.0.5.Final, by version range2018-09-11
vulnerable: 2.0.0.Alpha1 ... 2.0.4.Final (7 versions)
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.
- CVE-2018-14642MEDIUMCVSS 5.3EG 5.3fixed in 2.0.19.FINAL2018-09-18
vulnerable: 1.0.0.Alpha1 ... 2.0.9.Final (235 versions)
An information leak vulnerability was found in Undertow. If all headers are not written out in the first write() call then the code that handles flushing the buffer will always write out the full contents of the writevBuffer buffer, which …
- CVE-2019-10212CRITICALCVSS 9.8EG 9.8fixed in 2.0.202019-10-02
vulnerable: 1.0.0.Alpha1 ... 2.0.9.Final (236 versions)
A flaw was found in, all under 2.0.20, in the Undertow DEBUG log for io.undertow.request.security. If enabled, an attacker could abuse this flaw to obtain the user's credentials from the log files.
- CVE-2019-14888HIGHCVSS 7.5EG 7.5fixed in 2.0.29.Final2020-01-23
vulnerable: 1.0.0.Alpha1 ... 2.0.9.Final (245 versions)
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.
- CVE-2019-3888CRITICALCVSS 9.8EG 9.8fixed in 2.0.212019-06-12
vulnerable: 1.0.0.Alpha1 ... 2.0.9.Final (237 versions)
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 UndertowL…
- CVE-2020-10687MEDIUMCVSS 4.8EG 4.8fixed in 2.2.0.Final2020-09-23
vulnerable: 1.0.0.Alpha1 ... 2.1.8.Final (268 versions)
A flaw was discovered in all versions of Undertow before Undertow 2.2.0.Final, where HTTP request smuggling related to CVE-2017-2666 is possible against HTTP/1.x and HTTP/2 due to permitting invalid characters in an HTTP request. This flaw…
- CVE-2020-10705HIGHCVSS 7.5EG 7.5fixed in 2.1.1.Final2020-06-10
vulnerable: 1.0.0.Alpha1 ... 2.1.0.Final (260 versions)
A flaw was discovered in Undertow in versions before Undertow 2.1.1.Final where certain requests to the "Expect: 100-continue" header may cause an out of memory error. This flaw may potentially lead to a denial of service.
- CVE-2020-10719MEDIUMCVSS 6.5EG 6.5fixed in 2.1.1.Final2020-05-26
vulnerable: 1.0.0.Alpha1 ... 2.1.0.Final (260 versions)
A flaw was found in Undertow in versions before 2.1.1.Final, regarding the processing of invalid HTTP requests with large chunk sizes. This flaw allows an attacker to take advantage of HTTP request smuggling.
- CVE-2020-1745HIGHCVSS 8.6EG 8.6fixed in 2.0.302020-04-28
vulnerable: 1.0.0.Alpha1 ... 2.0.9.Final (246 versions)
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…
- CVE-2020-1757HIGHCVSS 8.1EG 8.1fixed in 2.1.02020-04-21
vulnerable: 1.0.0.Alpha1 ... 2.0.9.Final (259 versions)
A flaw was found in all undertow-2.x.x SP1 versions prior to undertow-2.0.30.SP1, all undertow-1.x.x and undertow-2.x.x versions prior to undertow-2.1.0.Final, where the Servlet container causes servletPath to normalize incorrectly by trun…
- CVE-2020-27782HIGHCVSS 7.5EG 7.5fixed in 2.1.5 or 2.0.33, by version range2021-02-23
vulnerable: 1.0.0.Alpha1 ... 2.0.9.Final (249 versions)
A flaw was found in the Undertow AJP connector. Malicious requests and abrupt connection closes could be triggered by an attacker using query strings with non-RFC compliant characters resulting in a denial of service. The highest threat fr…
- CVE-2021-20220MEDIUMCVSS 4.8EG 4.8fixed in 2.1.6 or 2.0.34, by version range2021-02-23
vulnerable: 1.0.0.Alpha1 ... 2.0.9.Final (250 versions)
A flaw was found in Undertow. A regression in the fix for CVE-2020-10687 was found. HTTP request smuggling related to CVE-2017-2666 is possible against HTTP/1.x and HTTP/2 due to permitting invalid characters in an HTTP request. This flaw …
- CVE-2021-3597MEDIUMCVSS 5.9EG 5.9fixed in 2.2.9.Final or 2.0.39.Final, by version range2022-05-24
vulnerable: 1.0.0.Alpha1 ... 2.0.9.Final (255 versions)
A flaw was found in undertow. The HTTP2SourceChannel fails to write the final frame under some circumstances, resulting in a denial of service. The highest threat from this vulnerability is availability. This flaw affects Undertow versions…
- CVE-2021-3629MEDIUMCVSS 5.9EG 5.9fixed in 2.0.40.Final or 2.2.11.Final, by version range2022-05-24
vulnerable: 2.1.0.Final ... 2.2.9.Final (20 versions)
A flaw was found in Undertow. A potential security issue in flow control handling by the browser over http/2 may potentially cause overhead or a denial of service in the server. The highest threat from this vulnerability is availability. T…
- CVE-2021-3690HIGHCVSS 7.5EG 7.5fixed in 2.0.40 or 2.2.10, by version range2022-08-23
vulnerable: 2.2.0.Final ... 2.2.9.Final (10 versions)
A flaw was found in Undertow. A buffer leak on the incoming WebSocket PONG message may lead to memory exhaustion. This flaw allows an attacker to cause a denial of service. The highest threat from this vulnerability is availability.
- CVE-2021-3859HIGHCVSS 7.5EG 7.5fixed in 2.2.152022-08-26
vulnerable: 1.0.0.Alpha1 ... 2.2.9.Final (283 versions)
A flaw was found in Undertow that tripped the client-side invocation timeout with certain calls made over HTTP2. This flaw allows an attacker to carry out denial of service attacks.
- CVE-2022-2053HIGHCVSS 7.5EG 7.5fixed in 2.2.19.Final or 2.3.0.Alpha2, by version range2022-08-05
vulnerable: 2.3.0.Alpha1
When a POST request comes through AJP and the request exceeds the max-post-size limit (maxEntitySize), Undertow's AjpServerRequestConduit implementation closes a connection without sending any response to the client/proxy. This behavior re…
- CVE-2022-4492HIGHCVSS 7.5EG 7.5fixed in 2.3.5.Final or 2.2.24.Final, by version range2023-02-23
vulnerable: 1.0.0.Alpha1 ... 2.2.9.Final (292 versions)
The undertow client is not checking the server identity presented by the server certificate in https connections. This is a compulsory step (at least it should be performed by default) in https and in http/2. I would add it to any TLS clie…
- CVE-2023-1108HIGHCVSS 7.5EG 7.5fixed in 2.3.5.Final or 2.2.24.Final, by version range2023-09-14
vulnerable: 1.0.0.Alpha1 ... 2.2.9.Final (292 versions)
A flaw was found in undertow. This issue makes achieving a denial of service possible due to an unexpected handshake status updated in SslConduit, where the loop never terminates.
- CVE-2023-1973HIGHCVSS 7.5EG 7.5fixed in 2.2.32.Final or 2.3.13.Final, by version range2024-11-07
vulnerable: 2.3.0.Alpha1 ... 2.3.9.Final (16 versions)
A flaw was found in Undertow package. Using the FormAuthenticationMechanism, a malicious user could trigger a Denial of Service by sending crafted requests, leading the server to an OutofMemory error, exhausting the server's memory.
- CVE-2023-4639HIGHCVSS 7.4EG 7.4fixed in 2.3.11.Final or 2.2.30.Final, by version range2024-11-17
vulnerable: 1.0.0.Alpha1 ... 2.2.9.Final (298 versions)
A flaw was found in Undertow, which incorrectly parses cookies with certain value-delimiting characters in incoming requests. This issue could allow an attacker to construct a cookie value to exfiltrate HttpOnly cookie values or spoof arbi…
- CVE-2024-1459MEDIUMCVSS 5.3EG 5.3fixed in 2.2.31.Final or 2.3.12.Final, by version range2024-02-12
vulnerable: 2.3.0.Alpha1 ... 2.3.9.Final (15 versions)
A path traversal vulnerability was found in Undertow. This issue may allow a remote attacker to append a specially-crafted sequence to an HTTP request for an application deployed to JBoss EAP, which may permit access to privileged or restr…
- CVE-2024-1635HIGHCVSS 7.5EG 7.5fixed in 2.3.12.Final or 2.2.31.Final, by version range2024-02-19
vulnerable: 1.0.0.Alpha1 ... 2.2.9.Final (299 versions)
A vulnerability was found in Undertow. This vulnerability impacts a server that supports the wildfly-http-client protocol. Whenever a malicious user opens and closes a connection with the HTTP port of the server and then closes the connect…
- CVE-2024-3653MEDIUMCVSS 5.3EG 5.3fixed in 2.3.15.Final or 2.2.34.Final, by version range2024-07-08
vulnerable: 1.0.0.Alpha1 ... 2.2.9.Final (302 versions)
A vulnerability was found in Undertow. This issue requires enabling the learning-push handler in the server's config, which is disabled by default, leaving the maxAge config in the handler unconfigured. The default is -1, which makes the h…
- CVE-2024-3884HIGHCVSS 7.5EG 7.5fixed in 2.2.39.Final, 2.4.0.Beta1 or 2.3.21.Final, by version range2025-12-03
vulnerable: 2.3.0.Alpha1 ... 2.3.9.Final (24 versions)
A flaw was found in Undertow that can cause remote denial of service attacks. When the server uses the FormEncodedDataDefinition.doParse(StreamSourceChannel) method to parse large form data encoding with application/x-www-form-urlencoded, …
- CVE-2024-4027HIGHCVSS 7.5EG 7.5fixed in 2.2.39.Final, 2.4.0.Beta1 or 2.3.21.Final, by version range2026-01-30
vulnerable: 2.3.0.Alpha1 ... 2.3.9.Final (24 versions)
A flaw was found in Undertow. Servlets using a method that calls HttpServletRequestImpl.getParameterNames() can cause an OutOfMemoryError when the client sends a request with large parameter names. This issue can be exploited by an unautho…
- CVE-2024-5971HIGHCVSS 7.5EG 7.5fixed in 2.3.15.Final or 2.2.34.Final, by version range2024-07-08
vulnerable: 1.0.0.Alpha1 ... 2.2.9.Final (302 versions)
A vulnerability was found in Undertow, where the chunked response hangs after the body was flushed. The response headers and body were sent but the client would continue waiting as Undertow does not send the expected 0\r\n termination of t…
- CVE-2024-6162HIGHCVSS 7.5EG 7.5fixed in 2.3.14.Final or 2.2.33.Final, by version range2024-06-20
vulnerable: 1.0.0.Alpha1 ... 2.2.9.Final (301 versions)
A vulnerability was found in Undertow, where URL-encoded request paths can be mishandled during concurrent requests on the AJP listener. This issue arises because the same buffer is used to decode the paths for multiple requests simultaneo…
- CVE-2024-7885HIGHCVSS 7.5EG 7.5fixed in 2.2.36.Final or 2.3.17.Final, by version range2024-08-21
vulnerable: 2.3.0.Alpha1 ... 2.3.9.Final (20 versions)
A vulnerability was found in Undertow where the ProxyProtocolReadListener reuses the same StringBuilder instance across multiple requests. This issue occurs when the parseProxyProtocolV1 method processes multiple requests on the same HTTP …
- CVE-2025-12543CRITICALCVSS 9.6EG 9.6fixed in 2.3.21.Final or 2.2.39.Final, by version range2026-01-07
vulnerable: 1.0.0.Alpha1 ... 2.2.9.Final (307 versions)
A flaw was found in the Undertow HTTP server core, which is used in WildFly, JBoss EAP, and other Java applications. The Undertow library fails to properly validate the Host header in incoming HTTP requests.As a result, requests containing…
- CVE-2025-9784HIGHCVSS 7.5EG 7.5fixed in 2.2.38.Final or 2.3.20.Final, by version range2025-09-02
vulnerable: 2.3.0.Alpha1 ... 2.3.9.Final (23 versions)
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…
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