Apache Tomcat vulnerabilities

CVE-2002-1394 [HIGH] CVE-2002-1394: Apache Tomcat 4.0.5 and earlier, when using both the invoker servlet and the default servlet, allows Apache Tomcat 4.0.5 and earlier, when using both the invoker servlet and the default servlet, allows remote attackers to read source code for server files or bypass certain protections, a variant of CAN-2002-1148.

CVE-2011-5063 [MEDIUM] CVE-2011-5063: The HTTP Digest Access Authentication implementation in Apache Tomcat 5.5.x before 5.5.34, 6.x befor The HTTP Digest Access Authentication implementation in Apache Tomcat 5.5.x before 5.5.34, 6.x before 6.0.33, and 7.x before 7.0.12 does not check realm values, which might allow remote attackers to bypass intended access restrictions by leveraging the availability of a protection space with weaker authentication or authorization requirements, a different vul

CVE-2024-52318 [MEDIUM] CWE-326 CVE-2024-52318: Incorrect object recycling and reuse vulnerability in Apache Tomcat. This issue affects Apache Tomc Incorrect object recycling and reuse vulnerability in Apache Tomcat. This issue affects Apache Tomcat: 11.0.0, 10.1.31, 9.0.96. Users are recommended to upgrade to version 11.0.1, 10.1.32 or 9.0.97, which fixes the issue.

CVE-2005-2090 [MEDIUM] CVE-2005-2090: Jakarta Tomcat 5.0.19 (Coyote/1.1) and Tomcat 4.1.24 (Coyote/1.0) allows remote attackers to poison Jakarta Tomcat 5.0.19 (Coyote/1.1) and Tomcat 4.1.24 (Coyote/1.0) allows remote attackers to poison the web cache, bypass web application firewall protection, and conduct XSS attacks via an HTTP request with both a "Transfer-Encoding: chunked" header and a Content-Length header, which causes Tomcat to incorrectly handle and forward the body of the request in a

CVE-2026-25854 [MEDIUM] CWE-601 CVE-2026-25854: Occasional URL redirection to untrusted Site ('Open Redirect') vulnerability in Apache Tomcat via th Occasional URL redirection to untrusted Site ('Open Redirect') vulnerability in Apache Tomcat via the LoadBalancerDrainingValve. This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.18, from 10.1.0-M1 through 10.1.52, from 9.0.0.M23 through 9.0.115, from 8.5.30 through 8.5.100. Other, unsupported versions may also be affected Users are re

CVE-2011-1475 [MEDIUM] CWE-20 CVE-2011-1475: The HTTP BIO connector in Apache Tomcat 7.0.x before 7.0.12 does not properly handle HTTP pipelining The HTTP BIO connector in Apache Tomcat 7.0.x before 7.0.12 does not properly handle HTTP pipelining, which allows remote attackers to read responses intended for other clients in opportunistic circumstances by examining the application data in HTTP packets, related to "a mix-up of responses for requests from different users."

CVE-2011-3375 [MEDIUM] CWE-200 CVE-2011-3375: Apache Tomcat 6.0.30 through 6.0.33 and 7.x before 7.0.22 does not properly perform certain caching Apache Tomcat 6.0.30 through 6.0.33 and 7.x before 7.0.22 does not properly perform certain caching and recycling operations involving request objects, which allows remote attackers to obtain unintended read access to IP address and HTTP header information in opportunistic circumstances by reading TCP data.

CVE-2009-2901 [MEDIUM] CWE-264 CVE-2009-2901: The autodeployment process in Apache Tomcat 5.5.0 through 5.5.28 and 6.0.0 through 6.0.20, when auto The autodeployment process in Apache Tomcat 5.5.0 through 5.5.28 and 6.0.0 through 6.0.20, when autoDeploy is enabled, deploys appBase files that remain from a failed undeploy, which might allow remote attackers to bypass intended authentication requirements via HTTP requests.

CVE-2011-5064 [MEDIUM] CVE-2011-5064: DigestAuthenticator.java in the HTTP Digest Access Authentication implementation in Apache Tomcat 5. DigestAuthenticator.java in the HTTP Digest Access Authentication implementation in Apache Tomcat 5.5.x before 5.5.34, 6.x before 6.0.33, and 7.x before 7.0.12 uses Catalina as the hard-coded server secret (aka private key), which makes it easier for remote attackers to bypass cryptographic protection mechanisms by leveraging knowledge of this string, a diffe

CVE-2016-0706 [MEDIUM] CWE-200 CVE-2016-0706: Apache Tomcat 6.x before 6.0.45, 7.x before 7.0.68, 8.x before 8.0.31, and 9.x before 9.0.0.M2 does Apache Tomcat 6.x before 6.0.45, 7.x before 7.0.68, 8.x before 8.0.31, and 9.x before 9.0.0.M2 does not place org.apache.catalina.manager.StatusManagerServlet on the org/apache/catalina/core/RestrictedServlets.properties list, which allows remote authenticated users to bypass intended SecurityManager restrictions and read arbitrary HTTP requests, and c

CVE-2020-1935 [MEDIUM] CWE-444 CVE-2020-1935: In Apache Tomcat 9.0.0.M1 to 9.0.30, 8.5.0 to 8.5.50 and 7.0.0 to 7.0.99 the HTTP header parsing cod In Apache Tomcat 9.0.0.M1 to 9.0.30, 8.5.0 to 8.5.50 and 7.0.0 to 7.0.99 the HTTP header parsing code used an approach to end-of-line parsing that allowed some invalid HTTP headers to be parsed as valid. This led to a possibility of HTTP Request Smuggling if Tomcat was located behind a reverse proxy that incorrectly handled the invalid Transfer-Encodi

CVE-2012-2733 [MEDIUM] CWE-20 CVE-2012-2733: java/org/apache/coyote/http11/InternalNioInputBuffer.java in the HTTP NIO connector in Apache Tomcat java/org/apache/coyote/http11/InternalNioInputBuffer.java in the HTTP NIO connector in Apache Tomcat 6.x before 6.0.36 and 7.x before 7.0.28 does not properly restrict the request-header size, which allows remote attackers to cause a denial of service (memory consumption) via a large amount of header data.

CVE-2019-17569 [MEDIUM] CWE-444 CVE-2019-17569: The refactoring present in Apache Tomcat 9.0.28 to 9.0.30, 8.5.48 to 8.5.50 and 7.0.98 to 7.0.99 int The refactoring present in Apache Tomcat 9.0.28 to 9.0.30, 8.5.48 to 8.5.50 and 7.0.98 to 7.0.99 introduced a regression. The result of the regression was that invalid Transfer-Encoding headers were incorrectly processed leading to a possibility of HTTP Request Smuggling if Tomcat was located behind a reverse proxy that incorrectly handled the inval

CVE-2025-61795 [MEDIUM] CWE-404 CVE-2025-61795: Improper Resource Shutdown or Release vulnerability in Apache Tomcat. If an error occurred (includi Improper Resource Shutdown or Release vulnerability in Apache Tomcat. If an error occurred (including exceeding limits) during the processing of a multipart upload, temporary copies of the uploaded parts written to disc were not cleaned up immediately but left for the garbage collection process to delete. Depending on JVM settings, application memor

CVE-2014-0099 [MEDIUM] CWE-189 CVE-2014-0099: Integer overflow in java/org/apache/tomcat/util/buf/Ascii.java in Apache Tomcat before 6.0.40, 7.x b Integer overflow in java/org/apache/tomcat/util/buf/Ascii.java in Apache Tomcat before 6.0.40, 7.x before 7.0.53, and 8.x before 8.0.4, when operated behind a reverse proxy, allows remote attackers to conduct HTTP request smuggling attacks via a crafted Content-Length HTTP header.

CVE-2015-5174 [MEDIUM] CWE-22 CVE-2015-5174: Directory traversal vulnerability in RequestUtil.java in Apache Tomcat 6.x before 6.0.45, 7.x before Directory traversal vulnerability in RequestUtil.java in Apache Tomcat 6.x before 6.0.45, 7.x before 7.0.65, and 8.x before 8.0.27 allows remote authenticated users to bypass intended SecurityManager restrictions and list a parent directory via a /.. (slash dot dot) in a pathname used by a web application in a getResource, getResourceAsStream, or getRe

CVE-2023-42795 [MEDIUM] CWE-459 CVE-2023-42795: Incomplete Cleanup vulnerability in Apache Tomcat.When recycling various internal objects in Apache Incomplete Cleanup vulnerability in Apache Tomcat.When recycling various internal objects in Apache Tomcat from 11.0.0-M1 through 11.0.0-M11, from 10.1.0-M1 through 10.1.13, from 9.0.0-M1 through 9.0.80 and from 8.5.0 through 8.5.93, an error could cause Tomcat to skip some parts of the recycling process leading to information leaking from the curren

CVE-2024-54677 [MEDIUM] CWE-400 CVE-2024-54677: Uncontrolled Resource Consumption vulnerability in the examples web application provided with Apache Uncontrolled Resource Consumption vulnerability in the examples web application provided with Apache Tomcat leads to denial of service. This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.1, from 10.1.0-M1 through 10.1.33, from 9.0.0.M1 through 9.9.97. The following versions were EOL at the time the CVE was created but are known to be aff

CVE-2026-32990 [MEDIUM] CVE-2026-32990: Improper Input Validation vulnerability in Apache Tomcat due to an incomplete fix of CVE-2025-66614. Improper Input Validation vulnerability in Apache Tomcat due to an incomplete fix of CVE-2025-66614. This issue affects Apache Tomcat: from 11.0.15 through 11.0.19, from 10.1.50 through 10.1.52, from 9.0.113 through 9.0.115. Users are recommended to upgrade to version 11.0.20, 10.1.53 or 9.0.116, which fix the issue.

CVE-2012-3544 [MEDIUM] CWE-20 CVE-2012-3544: Apache Tomcat 6.x before 6.0.37 and 7.x before 7.0.30 does not properly handle chunk extensions in c Apache Tomcat 6.x before 6.0.37 and 7.x before 7.0.30 does not properly handle chunk extensions in chunked transfer coding, which allows remote attackers to cause a denial of service by streaming data.