CVE-2024-24549

Apache Tomcat is vulnerable to a Denial of Service (DoS) attack due to improper input validation in HTTP/2 requests. When an HTTP/2 request exceeds configured header limits, the associated stream is not reset until all headers are processed, potentially leading to resource exhaustion. This issue ...

CVE-2024-34750

Apache Tomcat is vulnerable to Improper Handling of Exceptional Conditions and Uncontrolled Resource Consumption (CWE-755, CWE-400). When processing an HTTP/2 stream, the software fails to correctly handle cases of excessive HTTP headers , leading to a miscounting of active streams. This results ...

CVE-2023-42795

CVE-2023-42795 is an Apache Tomcat Incomplete Cleanup vulnerability. When recycling internal objects during request handling, Tomcat could skip parts of the recycling process, causing information leakage from the current request/response to the next. Affected versions include 11.0.0-M1 through 11...

CVE-2022-23181

CVE-2022-23181 is a TOCTTOU vulnerability introduced by the fix for CVE-2020-9484 in Apache Tomcat when the server persists sessions using FileStore. It is exploitable by a local attacker who can perform actions with the Tomcat process user privileges. Affected ranges (per the sources) include To...

CVE-2016-3092

CVE-2016-3092 is a DoS in Apache Commons FileUpload via a crafted long multipart boundary. Affected: Commons FileUpload before 1.3.2 used in Tomcat 7.x up to 7.0.70, Tomcat 8.x up to 8.0.36, Tomcat 8.5.x up to 8.5.3, Tomcat 9.x up to 9.0.0.M7, and other products. Root cause: boundary length trigg...

CVE-2021-42340

The CVE-2021-42340 issue is a memory leak in Apache Tomcat caused by the upgrade HTTP metric collector not releasing WebSocket resources after close. Affected versions include Tomcat 8.5.60–8.5.71, 9.0.40–9.0.53, 10.0.0-M1–10.0.11, and 10.1.0-M1–10.1.0-M5. Over time, this leak can lead to OutOfMe...

CVE-2022-34305

Apache Tomcat versions 10.1.0-M1 to 10.1.0-M16 , 10.0.0-M1 to 10.0.22 , 9.0.30 to 9.0.64 , and 8.5.50 to 8.5.81 are vulnerable to a Cross-Site Scripting (XSS) flaw. The root cause is that the Form authentication example within the examples web application displays user-provided data without suffi...

CVE-2022-29885

CVE-2022-29885 concerns Apache Tomcat EncryptInterceptor documentation, which incorrectly claimed clustering over untrusted networks. The vulnerability does not enable additional risks via DoS over untrusted networks; rather it exposes DoS risks that EncryptInterceptor does not guard against. Aff...

CVE-2023-28708

CVE-2023-28708 affects Apache Tomcat where RemoteIpFilter processed requests from reverse proxies with X-Forwarded-Proto: https, causing session cookies to be set without the secure attribute across several lines of Tomcat releases (8.5.0–8.5.85, 9.0.0-M1–9.0.71, 10.1.0-M1–10.1.5, 11.0.0-M1–11.0....

CVE-2023-45648

CVE-2023-45648 describes an improper input validation in Apache Tomcat where HTTP trailer headers were not parsed correctly. A crafted trailer header could cause Tomcat to treat a single request as multiple requests, enabling potential request smuggling when deployed behind a reverse proxy. Affec...

CVE-2019-0199

The CVE-2019-0199 entry concerns Apache Tomcat’s HTTP/2 implementation. Affected products/versions: Tomcat 9.0.0.M1–9.0.14 and 8.5.0–8.5.37 (per public advisories) allowed streams to accumulate excessive SETTINGS frames and kept streams open when using Servlet API blocking I/O. Root cause: improp...

CVE-2021-43980

CVE-2021-43980 affects Apache Tomcat 8.5.0–8.5.77, 9.0.0-M1–9.0.60, 10.0.0-M1–10.0.18, and 10.1.0–10.1.0-M12. The issue arises from a simplified blocking I/O path that shares an Http11Processor between clients, potentially causing responses or partial responses to be delivered to the wrong client...

CVE-2018-1304

Apache Tomcat vulnerability CVE-2018-1304 arises from incorrect handling of the empty string URL pattern ("") in security constraint processing, allowing unauthorized access to protected resources. Affected versions: Tomcat 9.0.0.M1–9.0.4, 8.5.0–8.5.27, 8.0.0.RC1–8.0.49, and 7.0.0–7.0.84. This is...

CVE-2017-5647

CVE-2017-5647 is a Tomcat pipeline handling bug affecting multiple major Tomcat lines (7.x/8.x/9.x) where pipelined requests with Sendfile could be misassociated, causing responses to appear for wrong requests or omissions. Technical description from Debian/CentOS advisories confirms the issue st...

CVE-2017-5648

CVE-2017-5648 is described across connected advisories as a vulnerability in Apache Tomcat where calls to application listeners did not use the appropriate facade object. Under a SecurityManager, an untrusted application could retain a reference to the request or response and access/modify inform...

CVE-2022-45143

CVE-2022-45143 affects Apache Tomcat: the JsonErrorReportValve failed to escape type, message, or description fields, which could be constructed from user data and allow manipulation of JSON output. Affected versions include Tomcat 8.5.83, 9.0.40–9.0.68, and 10.1.0-M1–10.1.1. The issue’s impact i...

CVE-2016-6816

CVE-2016-6816 affects multiple Tomcat branches (9.0.0.M1–M11, 8.5.0–8.5.6, 8.0.0.RC1–8.0.38, 7.0.0–7.0.72, 6.0.0–6.0.47). The vulnerability arises from parsing the HTTP request line with invalid characters, which could be combined with a proxy interpreting those chars differently to inject data i...

CVE-2018-8037

CVE-2018-8037 affects Apache Tomcat 9.0.0.M9–9.0.9 and 8.5.5–8.5.31. The issue is a race condition where an async request completes as the container times out, plus a related NIO/NIO2 connector closure-tracking bug, which could cause a user to receive a response intended for another user. Impact ...

CVE-2016-8745

CVE-2016-8745 describes a bug in Tomcat’s NIO HTTP connector error handling that could allow information leakage between requests. A Processor object could be added to the Processor cache multiple times, enabling the same Processor to service concurrent requests and potentially expose session IDs...

CVE-2018-1305

Apache Tomcat contains CVE-2018-1305, where security constraints defined by Servlet annotations were only applied after a Servlet load, potentially allowing unauthorized access to resources depending on the order of loading. Affected releases span 7.0.0–7.0.84, 8.0.0.RC1–8.0.49, 8.5.0–8.5.27, and...

CVE-2024-38286

The CVE-2024-38286 entry describes an Allocation of Resources Without Limits or Throttling vulnerability in Apache Tomcat that, under certain configurations, allows an attacker to trigger an OutOfMemoryError by abusing the TLS handshake. Affected versions include Tomcat 11.0.0-M1 through 11.0.0-M...

CVE-2017-5664

CVE-2017-5664 affects Apache Tomcat and concerns the error page mechanism. The DefaultServlet failed to forward error pages with the original request method across multiple releases (Tomcat 9.0.0.M1–9.0.0.M20, 8.5.0–8.5.14, 8.0.0.RC1–8.0.43, 7.0.0–7.0.77), which could lead to unexpected results f...

CVE-2025-49125

Apache Tomcat is vulnerable to an authentication bypass when using PreResources or PostResources mounted at paths other than the web application root. An attacker can access these resources via an unexpected path that may lack the intended security constraints. Affected versions include 11.0.0-M1...

CVE-2016-5388

The CVE-2016-5388 issue affects Apache Tomcat (CGI Servlet enabled) where Proxy header handling exposes HTTP_PROXY data to CGI scripts, enabling redirection of outbound requests to a attacker-controlled proxy (httpoxy). Public advisories across multiple distributions confirm Tomcat 7.x up to 7.0....

CVE-2017-12616

CVE-2017-12616 affects Apache Tomcat 7.0.0–7.0.80 with VirtualDirContext, enabling bypass of security constraints and viewing JSP source via a crafted request. Affected products/versions are documented in multiple advisories; remediation is to upgrade to a newer Tomcat 7.x release (e.g., Debian/R...

CVE-2023-42794

CVE-2023-42794 is an Incomplete Cleanup vulnerability in Apache Tomcat’s internal Commons FileUpload fork. It affects Tomcat 9.0.70–9.0.80 and 8.5.85–8.5.93; a partially refactored, unreleased code path could leave an uploaded file stream open if not closed, causing the file to remain on disk and...

CVE-2026-59083

A vulnerability in the rewrite valve component of Apache Tomcat allows for a security constraint bypass due to improper handling of URL encoding (Hex Encoding) . This issue affects multiple versions, including 11.0.0-M1 through 11.0.23, 10.1.0-M1 through 10.1.56, 9.0.0.M1 through 9.0.119, and 8.5...

CVE-2026-25854

Apache Tomcat is vulnerable to an Open Redirect vulnerability via the LoadBalancerDrainingValve component. When a Tomcat node in a cluster is in a disabled (draining) state , an attacker can use a specially crafted URL to trigger a redirect to an arbitrary URI of their choice. This issue affects ...

CVE-2025-48988

Apache Tomcat is vulnerable to a Denial of Service (DoS) condition due to Allocation of Resources Without Limits or Throttling (CWE-770). The flaw allows an attacker to cause high CPU usage and resource exhaustion by sending a large number of parallelized multi-part requests with many parts and h...

CVE-2007-0450

CVE-2007-0450 is a directory traversal vulnerability affecting Apache Tomcat (and Tomcat behind certain Apache proxies) where a crafted URI containing a dot-dot sequence and mixed separators (/, , and %5C) can cause unauthorized disclosure of arbitrary files. Affected products/versions include To...

CVE-2017-7674

CVE-2017-7674 affects Apache Tomcat where the CORS Filter failed to add a Vary: Origin header, enabling potential cache poisoning. Affected product ranges include Tomcat 7.x, 8.x, and 9.x across multiple minor releases. The issue is documented in various advisories (Debian, Red Hat/CentOS, AWS AL...

CVE-2021-41079

CVE-2021-41079 affects Apache Tomcat when TLS is configured with NIO/NIO2 and OpenSSL. Multiple sources confirm: Tomcat versions 8.5.0–8.5.63, 9.0.0-M1–9.0.43, and 10.0.0-M1–10.0.2 fail to properly validate incoming TLS packets, allowing a specially crafted TLS packet to trigger an infinite loop ...

CVE-2024-21733

CVE-2024-21733 affects Apache Tomcat 8.5.7–8.5.63 and 9.0.0-M11–9.0.43, where error responses may disclose sensitive information from unrelated requests on the default error page. Upgrade to Tomcat 8.5.64+ or 9.0.44+ to fix. A public PoC exploit exists (GitHub: https://github.com/LtmThink/CVE-202...

CVE-2016-6325

CVE-2016-6325 affects Red Hat Enterprise Linux (RHEL) 5–7, JBoss Web Server 3.0, and JBoss EWS 2, where insecure permissions on /etc/sysconfig/tomcat and /etc/tomcat/tomcat.conf allow local privilege escalation through tomcat group membership. Affected entries describe the root cause as insecure ...

CVE-2026-41284

The Apache Tomcat application server is vulnerable to a Denial of Service (DoS) attack due to an Allocation of Resources Without Limits or Throttling vulnerability. This issue allows an unauthenticated network attacker to disrupt services by exhausting resources, potentially making them unavailab...

CVE-2026-53434

Apache Tomcat is vulnerable to a Detection of Error Condition Without Action vulnerability when configuring CRLs for a FFM based connector . This issue affects versions 11.0.0-M1 through 11.0.22 , 10.1.0-M7 through 10.1.55 , and 9.0.83 through 9.0.118 . According to external documentation, this d...

CVE-2023-34981

CVE-2023-34981 affects Apache Tomcat: a regression in the fix for bug 66512 causes no AJP SEND_HEADERS to be sent when a response has no HTTP headers, allowing an information leak via proxies (e.g., mod_proxy_ajp) leaking headers from a previous request. The initial description lists affected Tom...

CVE-2015-5346

CVE-2015-5346 (Tomcat) describes a session-fixation vulnerability in Apache Tomcat 7.x before 7.0.66, 8.x before 8.0.30, and 9.x before 9.0.0.M2. When different session settings are used for deployments of multiple versions of the same web application, an attacker could hijack a user session by e...

CVE-2016-0714

The CVE-2016-0714 entry concerns the Tomcat session-persistence mechanism. In Apache Tomcat versions affected (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), the session-persistence implementation mishandles session attributes, allowing remote authenticated use...

CVE-2026-29146

Apache Tomcat is vulnerable to a Padding Oracle attack due to the EncryptInterceptor using CBC by default in its configuration. This flaw allows an unauthenticated attacker to gain high impact to confidentiality by viewing sensitive information. The issue affects versions 11.0.0-M1 through 11.0.1...

CVE-2026-34486

Apache Tomcat versions 11.0.20, 10.1.53, and 9.0.116 are vulnerable to a missing encryption of sensitive data flaw. The root cause is a bypass of the EncryptInterceptor caused by a previous fix for CVE-2026-29146. This vulnerability allows remote attackers to gain unauthorized access to protected...

CVE-2026-65182

Apache Tomcat is vulnerable to an Improper Access Control and Incorrect Authorization flaw where security constraints can be bypassed. This occurs if a constraint for a longer path is specified before a more restrictive constraint for a shorter sub-path. The vulnerability affects versions 11.0.0-...

CVE-2016-5425

CVE-2016-5425 describes a local privilege escalation in Tomcat packages on RHEL7, Fedora, CentOS, Oracle Linux, and similar distros due to weak permissions on /usr/lib/tmpfiles.d/tomcat.conf. Local users in the tomcat group can exploit this to gain root privileges via systemd-tmpfiles handling. T...

CVE-2016-5018

CVE-2016-5018 affects multiple Tomcat branches (9.0.0.M1–M9, 8.5.0–8.5.4, 8.0.0.RC1–8.0.36, 7.0.0–7.0.70, 6.0.0–6.0.45). The vulnerability allows a malicious web application to bypass a configured SecurityManager via a Tomcat utility method that is accessible to web applications, enabling bypass ...

CVE-2007-1858

CVE-2007-1858 affects Apache Tomcat 4.1.28–4.1.31, 5.0.0–5.0.30, and 5.5.0–5.5.17 where the default SSL cipher configuration uses insecure ciphers (including anonymous), enabling remote attackers to obtain sensitive information or cause other impacts. Connected sources confirm Tomcat security upd...

CVE-2026-55956

An Improper Authorization vulnerability in Apache Tomcat allows security constraints configured for the default servlet to ignore any method or method omission specified as part of the constraint. This flaw impacts multiple versions, including 11.0.0-M1 through 11.0.22 , 10.1.0-M1 through 10.1.55...

CVE-2002-2272

CVE-2002-2272 affects Tomcat 4.0–4.1.12 when using mod_jk 1.2.1 with Apache 1.3–1.3.27. A remote attacker can cause a denial of service by sending an HTTP GET request that uses a Transfer-Encoding chunked field with invalid values, leading to desynchronized communications between Apache and Tomca...

CVE-2026-41293

Apache Tomcat is vulnerable to an Improper Input Validation vulnerability (CVE-2026-41293), which allows a malicious actor to cause service failures . This issue specifically affects versions 11.0.0-M1 through 11.0.21 , 10.1.0-M1 through 10.1.54 , 9.0.0.M1 through 9.0.117 , and 10.0.0-M1 through ...

CVE-2015-5174

Summary: CVE-2015-5174 is a directory traversal vulnerability in Apache Tomcat’s RequestUtil.java that affects Tomcat 6.x before 6.0.45, 7.x before 7.0.65, and 8.x before 8.0.27. A remote authenticated user could bypass SecurityManager restrictions and list a parent directory by using a /.. seque...

CVE-2005-2090

CVE-2005-2090 affects Jakarta Tomcat 5.0.19 (Coyote/1.1) and Tomcat 4.1.24 (Coyote/1.0): it enables HTTP Request Smuggling via a request containing both Transfer-Encoding: chunked and Content-Length, causing the body to be mis‑interpreted and processed as a new request. This issue is noted to hav...