CVE-2009-0783

CVE-2009-0783 affects multiple Apache Tomcat lines (4.1.0–4.1.39, 5.5.0–5.5.27, 6.0.0–6.0.18). The issue allows a local attacker to replace the XML parser used by web applications, enabling reading or modification of other applications’ files such as (1) web.xml, (2) context.xml, or (3) tld files...

CVE-2011-4858

CVE-2011-4858 affects Apache Tomcat 5.5.x before 5.5.35, 6.x before 6.0.35, and 7.x before 7.0.23. The issue arises from the Java hashCode() implementation allowing predictable hash collisions, enabling a remote attacker to exhaust CPU by sending many crafted parameters in a request (hash collisi...

CVE-2013-2067

CVE-2013-2067 affects Apache Tomcat FormAuthenticator: in Tomcat 6.0.21–6.0.36 and 7.x before 7.0.33, the relationship between authentication requirements and sessions is mishandled, allowing a remote attacker to inject a request into a session during login completion (session fixation variant). ...

CVE-2012-4431

CVE-2012-4431 affects Apache Tomcat 6.x earlier than 6.0.36 and 7.x earlier than 7.0.32. The vulnerability resides in CsrfPreventionFilter, allowing remote attackers to bypass CSRF protection via a request that lacks a session identifier. The connected documents confirm the affected component pat...

CVE-2026-59084

CVE-2026-59084 is an insufficient technical documentation vulnerability in Apache Tomcat . The issue stems from the requirements to securely configure the EncryptInterceptor being unclearly documented, which could lead to insecure configurations. This vulnerability affects multiple versions, incl...

CVE-2016-6817

CVE-2016-6817 affects the HTTP/2 header parser in Apache Tomcat 9.0.0.M1–M11 and 8.5.0–8.5.6, which can enter an infinite loop when a header exceeds the available buffer, enabling a denial-of-service. The connected documents specify remediation by upgrading to fixed releases: Tomcat 9.0.0.M13 or ...

CVE-2026-65905

Apache Tomcat is susceptible to an Authentication Bypass by Capture-replay vulnerability within its DIGEST authenticator . The root cause occurs when a client submits a DIGEST authenticated request with a nonceCount on the upper boundary of the replay window before windowSize requests have been m...

CVE-2026-55955

Apache Tomcat contains an improper authentication vulnerability in the cluster component's EncryptionInterceptor . This flaw allows an attacker to perform a replay attack due to deficiencies in the authentication procedures. This issue affects multiple versions, including 11.0.0-M1 through 11.0.2...

CVE-2025-52520

An Integer Overflow vulnerability exists in Apache Tomcat during specific multipart upload configurations. This flaw allows for a Denial of Service (DoS) by bypassing defined size limits. Affected versions include 11.0.0-M1 through 11.0.8 , 10.1.0-M1 through 10.1.42 , and 9.0.0.M1 through 9.0.106...

CVE-2008-5515

The CVE-2008-5515 entry applies to Apache Tomcat 4.1.0–4.1.39, 5.5.0–5.5.27, and 6.0.0–6.0.18 (and possibly earlier) per the described vulnerability. Root cause: during RequestDispatcher usage, Tomcat normalizes the target pathname before filtering the query string, which can bypass access contro...

CVE-2012-5887

The CVE-2012-5887 entry concerns the HTTP Digest Access Authentication in Apache Tomcat (versions 5.5.x before 5.5.36, 6.x before 6.0.36, 7.x before 7.0.30). The vulnerability is a failure to properly check stale nonce values when enforcing credentials, enabling remote attackers to bypass access ...

CVE-2000-0760

Affected software: Jakarta Tomcat 3.0 and 3.1 under Apache. Vulnerability: The Snoop servlet exposes sensitive system information when a remote attacker requests a nonexistent URL with a .snp extension, leading to information disclosure. Root cause / details: Information disclosure vulnerability ...

CVE-2012-0022

Apache Tomcat 5.5.x before 5.5.35, 6.x before 6.0.34, and 7.x before 7.0.23 are affected by a denial-of-service vulnerability caused by an inefficient handling of HTTP parameters that can be exploited by sending requests with many parameters. The root cause is a hash-collision vulnerability in pa...

CVE-2026-24880

Apache Tomcat is vulnerable to HTTP Request/Response Smuggling due to a failure to validate the contents of HTTP/1.1 chunk extensions . This flaw allows an attacker to send hidden HTTP requests remotely if a reverse proxy in front of Tomcat permits CRLF sequences in an otherwise valid chunk exten...

CVE-2025-55754

Apache Tomcat contains an Improper Neutralization of Escape, Meta, or Control Sequences vulnerability because it fails to escape ANSI escape sequences in log messages. If Tomcat runs in a console on a Windows operating system supporting these sequences, an attacker could use a specially crafted U...

CVE-2026-43513

Apache Tomcat is vulnerable to an Improper Handling of Case Sensitivity vulnerability within the LockOutRealm component. This issue arises from deficiencies in the mechanism for handling register-dependent data, potentially allowing a malicious actor to bypass existing security measures remotely....

CVE-2008-1232

CVE-2008-1232 is an XSS vulnerability in Apache Tomcat affecting versions 4.1.0–4.1.37, 5.5.0–5.5.26, and 6.0.0–6.0.16. The root cause is improper validation of user-supplied input used in the HttpServletResponse.sendError method, allowing remote attackers to inject arbitrary web script or HTML v...

CVE-2011-1184

The vulnerability CVE-2011-1184 affects Apache Tomcat 5.5.x before 5.5.34, 6.x before 6.0.33, and 7.x before 7.0.12. The HTTP Digest Access Authentication implementation has insufficient replay-attack countermeasures due to lack of proper nonce and nc (nonce-count) checking, which can allow remot...

CVE-2025-61795

A Denial of Service (DoS) vulnerability exists in Apache Tomcat due to an improper resource shutdown or release during multipart upload processing. If an error occurs—such as exceeding limits—temporary copies of uploaded parts are not immediately cleaned up but are left for the garbage collection...

CVE-2011-2204

CVE-2011-2204 affects Apache Tomcat when MemoryUserDatabase logs password data on JMX user creation errors. Affected: Tomcat 5.5.x < 5.5.34, 6.x < 6.0.33, 7.x

CVE-2007-1358

CVE-2007-1358 is an XSS vulnerability affecting Apache Tomcat 4.x. It allows remote attackers to inject arbitrary script or HTML via crafted Accept-Language headers that do not conform to RFC 2616. Affected product ranges include Tomcat 4.0.0–4.0.6 and 4.1.0–4.1.34. The issue is triggered by impr...

CVE-2026-32990

Apache Tomcat is susceptible to an Improper Input Validation vulnerability caused by an incomplete fix for CVE-2025-66614. This issue affects versions 11.0.15 through 11.0.19 , 10.1.50 through 10.1.52 , and 9.0.113 through 9.0.115 . While one source suggests the vulnerability could allow arbitrar...

CVE-2008-2370

CVE-2008-2370 affects Apache Tomcat 4.1.0–4.1.37, 5.5.0–5.5.26, and 6.0.0–6.0.16. When a RequestDispatcher is used, Tomcat performs path normalization before removing the query string, enabling remote attackers to read arbitrary files via a .. sequence in a request parameter (directory traversal)...

CVE-2006-7196

Cross-site scripting (XSS) vulnerability in the calendar example (cal2.jsp) of Apache Tomcat affects 4.0.0–4.0.6, 4.1.0–4.1.31, 5.0.0–5.0.30, and 5.5.0–5.5.15. An attacker can inject arbitrary script via the time parameter to cal2.jsp (and possibly other vectors). This enables script execution in...

CVE-2013-2071

CVE-2013-2071 affects Apache Tomcat 7.x prior to 7.0.40, where AsyncContextImpl.java may mishandle a RuntimeException thrown from an AsyncListener, potentially exposing elements of a previous request to a current one when a request is recorded by an application. The vulnerability is rooted in the...

CVE-2010-3718

CVE-2010-3718 affects Apache Tomcat 7.0.0–7.0.3, 6.0.x, and 5.5.x when running under a SecurityManager. The vulnerability is that ServletContext attributes are not made read-only, allowing local web applications to read or write files outside the intended working directory via a directory travers...

CVE-2010-2227

CVE-2010-2227 : Apache Tomcat versions 5.5.0–5.5.29, 6.0.0–6.0.27, and 7.0.0 beta are affected by improper handling of an invalid Transfer-Encoding header, which can cause a denial of service (outage) or information leakage via a crafted header that interferes with recycling of a buffer. The conn...

CVE-2011-5063

CVE-2011-5063 describes an issue in Apache Tomcat’s HTTP Digest Access Authentication where the realm values are not checked, enabling bypass of access controls by exploiting a protection space with weaker requirements (distinct from CVE-2011-1184). Related documents (CVE-2011-1184, CVE-2012-5885...

CVE-2011-5064

The vulnerability CVE-2011-5064 affects Apache Tomcat’s HTTP Digest Access Authentication (DigestAuthenticator.java) where Catalina is used as the hard-coded server secret (private key). Affected are Tomcat 5.5.x before 5.5.34, 6.x before 6.0.33, and 7.x before 7.0.12. This weakness enables remot...

CVE-2007-3386

CVE-2007-3386 is a cross-site scripting (XSS) vulnerability in the Host Manager Servlet of Apache Tomcat, affected in Tomcat 6.0.0–6.0.13 and 5.5.0–5.5.24. An attacker can inject arbitrary HTML/script by sending crafted requests, demonstrated via the aliases parameter to an html/add action. Conne...

CVE-2006-3835

CVE-2006-3835 affects Apache Tomcat 5 before 5.5.17. The vulnerability allows remote attackers to list directories by using a semicolon before a filename with a mapped extension, as shown by URLs like /;index.jsp or /;help.do. The initial description confirms the condition; related advisories (GH...

CVE-2007-1355

CVE-2007-1355 corresponds to multiple cross-site scripting (XSS) vulnerabilities in the Tomcat sample web app (appdev/sample/web/hello.jsp). Affected are Tomcat versions 4.0.0–4.0.6, 4.1.0–4.1.36, 5.0.0–5.0.30, 5.5.0–5.5.23, and 6.0.0–6.0.10. The issue allows remote attackers to inject arbitrary ...

CVE-2007-3385

CVE-2007-3385 affects Apache Tomcat: multiple branches (6.0.x, 5.5.x, 4.1.x, 3.3.x) fail to sanitize the " character sequence and similar encoded sequences in cookie values, potentially leaking session IDs and enabling session hijacking. Affected versions include 6.0.0–6.0.14 (and 5.5.0–5.5.25, 4...

CVE-2009-2693

Apache Tomcat contains a directory-traversal flaw (CVE-2009-2693) affecting Tomcat 5.5.0–5.5.28 and 6.0.0–6.0.20. An attacker can cause creation or overwrite of arbitrary files by including a .. path in a WAR entry, for example ../../bin/catalina.bat. The connected documents reiterate this exact ...

CVE-2011-2526

CVE-2011-2526 affects Apache Tomcat 5.5.x before 5.5.34, 6.x before 6.0.33, and 7.x before 7.0.19. When sendfile is enabled for the HTTP APR or HTTP NIO connector, Tomcat may not validate certain request attributes, allowing a local attacker to bypass file access restrictions or trigger a denial ...

CVE-2012-3546

CVE-2012-3546 affects Apache Tomcat 6.x (before 6.0.36) and 7.x (before 7.0.30). The flaw, in RealmBase/FormAuthenticator when FORM authentication is used, lets remote attackers bypass security-constraint checks by leveraging a prior setUserPrincipal() and appending /j_security_check to the URL. ...

CVE-2026-68525

An Incorrect Authorization vulnerability exists in Apache Tomcat 's FORM authentication process. This flaw allows an attacker to bypass security constraints that restrict user access to a resource via POST requests while allowing GET requests. This issue impacts versions from 11.0.0-M1 through 11...

CVE-2011-3375

CVE-2011-3375 affects Apache Tomcat 6.0.30–6.0.33 and 7.x before 7.0.22. The root cause is improper caching/recycling of request objects, which can allow remote attackers to read IP addresses and HTTP header information by reading TCP data. The impact is information disclosure of request metadata...

CVE-2012-4534

The CVE-2012-4534 issue affects Apache Tomcat 6.x before 6.0.36 and 7.x before 7.0.28. When using the NIO connector with sendfile over HTTPS, the NioEndpoint can enter an infinite loop if the client terminates the connection while reading a response, causing a denial of service. The root cause is...

CVE-2008-0128

Apache Tomcat 5.x before 5.5.21 is affected by CVE-2008-0128: when the SingleSignOn valve is used over HTTPS, the JSESSIONIDSSO cookie is not marked secure, allowing it to be sent over HTTP and potentially captured by an attacker via a crafted HTTP request. This information is supported by multip...

CVE-2009-2696

Apache Tomcat contains a cross-site scripting (XSS) vulnerability in the calendar example (jsp/cal/cal2.jsp). A remote attacker can inject script via the time parameter due to improper validation of user input (related to invalid HTML). The issue is documented in a GitHub advisory (GHSA-J788-FX57...

CVE-2009-2902

CVE-2009-2902 is a directory traversal vulnerability in Apache Tomcat, affecting 5.5.0–5.5.28 and 6.0.0–6.0.20. The issue allows remote attackers to delete work-directory files via directory traversal sequences in a WAR filename (e.g., a crafted entry like ../../... in a WAR). The connected Nessu...

CVE-2007-3382

The CVE-2007-3382 issue affects multiple Apache Tomcat releases (Tomcat 6.0.0–6.0.13, 5.5.0–5.5.24, 5.0.0–5.0.30, 4.1.0–4.1.36, 3.3–3.3.2). The root cause is that Tomcat treats the single quote (') as a delimiter in cookies, which can lead to leakage of sensitive data such as session IDs and enab...

CVE-2010-4172

CVE-2010-4172 affects Apache Tomcat 6.0.12–6.0.29 and 7.0.0–7.0.4, with multiple XSS vulnerabilities in the Tomcat Manager app (sessionsList.jsp via orderBy/sort, and input to sessionDetail.jsp or JspHelper.java) exploitable by remote attackers, related to untrusted web applications. The connecte...

CVE-2017-5650

CVE-2017-5650 affects Apache Tomcat 9.0.0.M1–M18 and 8.5.0–8.5.12. The HTTP/2 GOAWAY handling could fail to close streams waiting for a WINDOW_UPDATE, causing those streams to consume threads and enabling a malicious client to exhaust processing threads (DoS). There is no exploitation status in t...

CVE-2009-2901

The CVE-2009-2901 entry describes an authentication bypass in Apache Tomcat when the autodeployment (autoDeploy) feature is enabled. Affected versions are Tomcat 5.5.0–5.5.28 and 6.0.0–6.0.20, where appBase files left from a failed undeploy can be deployed and used to bypass intended authenticati...

CVE-2013-4444

CVE-2013-4444 is an Unrestricted file upload vulnerability in Apache Tomcat 7.x, prior to 7.0.40, where outdated java.io.File handling and a custom JMX config allow remote attackers to upload and access a JSP file, enabling arbitrary code execution on the vulnerable Tomcat instance. Public detail...

CVE-2025-55668

Apache Tomcat is susceptible to a Session Fixation vulnerability through the rewrite valve . This issue affects versions 11.0.0-M1 through 11.0.7 , 10.1.0-M1 through 10.1.41 , and 9.0.0.M1 through 9.0.105 , as well as certain older EOL versions. The vulnerability allows for session hijacking, whi...

CVE-2011-0013

CVE-2011-0013 describes XSS in the HTML Manager Interface of Apache Tomcat: affected are Tomcat 5.5 before 5.5.32, 6.0 before 6.0.30, and 7.0 before 7.0.6. The vulnerability allows remote attackers to inject arbitrary web script or HTML via the display-name tag. Mitigation is upgrading to the fix...

CVE-2026-42498

Apache Tomcat is vulnerable to an Information Disclosure flaw where the HTTP Authentication Header is exposed to unexpected hosts during WebSocket authentication . This issue specifically affects the tomcat-coyote component. The vulnerability impacts several versions, including Tomcat 11.0.0-M1 t...