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Critical 9.1CVE-2026-86350 Public exploit
Apache Tomcat: Regression in fix for CVE-2026-41293 can trigger request header mix-up
Inconsistent interpretation of HTTP/2 requests ('HTTP Request/Response smuggling') vulnerability in Apache Tomcat caused by a regression in fix for CVE-2026-41293 can trigger request header mix-up. This issue affects Apache Tomcat: from 11.0.22 through 11.0.2…
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High 7.3CVE-2026-55957 Public exploit
Apache Tomcat: Authentication bypass with JNDIRealm and GSSAPI authenticated bind
Missing Critical Step in Authentication vulnerability in Apache Tomcat when the JNDIRealm was configured to authenticate binds using GSSAPI allowed attackers to authenticate without provided the correct password. This issue affects Apache Tomcat: from 11.0.0-…
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Medium 6.1
Apache Tomcat: XSS in number guess example
Improper Neutralization of Script-Related HTML Tags in a Web Page (Basic XSS) vulnerability in the number guess example for Apache Tomcat. This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.22, from 10.1.0-M1 through 10.1.55, from 9.0.0.M1 through …
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Critical 9.1CVE-2026-43515 Public exploit
Apache Tomcat: Security constraints not correctly applied
Improper Authorization vulnerability when multiple method constraints define an HTTP method for the same extension in Apache Tomcat. This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.21, from 10.1.0-M1 through 10.1.54, from 9.0.0.M1 through 9.0.11…
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Critical 9.8CVE-2026-43512 Public exploit
Apache Tomcat: Digest authenticator will authenticate any unknown user
DEPRECATED: Authentication Bypass Issues vulnerability in digest authentication in Apache Tomcat. This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.21, from 10.1.0-M1 through 10.1.54, from 9.0.0.M1 through 9.0.117, from 8.5.0 through 8.5.100, from…
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High 7.5CVE-2026-24880 Public exploit
Apache Tomcat: Request smuggling via invalid chunk extension
Inconsistent Interpretation of HTTP Requests ('HTTP Request/Response Smuggling') vulnerability in Apache Tomcat via invalid chunk extension. 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.M1 throug…
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Medium 6.5CVE-2026-24733 Public exploit
Apache Tomcat: Security constraint bypass with HTTP/0.9
Improper Input Validation vulnerability in Apache Tomcat. Tomcat did not limit HTTP/0.9 requests to the GET method. If a security constraint was configured to allow HEAD requests to a URI but deny GET requests, the user could bypass that constraint on GET req…
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High 7.5
Apache Commons FileUpload, Apache Commons FileUpload: FileUpload DoS via part headers
Allocation of resources for multipart headers with insufficient limits enabled a DoS vulnerability in Apache Commons FileUpload. This issue affects Apache Commons FileUpload: from 1.0 before 1.6; from 2.0.0-M1 before 2.0.0-M4. Users are recommended to upgrade…
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High 7.5
Apache Tomcat: FileUpload large number of parts with headers DoS
Allocation of Resources Without Limits or Throttling vulnerability in Apache Tomcat. This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.7, from 10.1.0-M1 through 10.1.41, from 9.0.0.M1 through 9.0.105. The following versions were EOL at the time th…
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High 7.3CVE-2025-46701 Public exploit
Apache Tomcat: Security constraint bypass for CGI scripts
Improper Handling of Case Sensitivity vulnerability in Apache Tomcat's GCI servlet allows security constraint bypass of security constraints that apply to the pathInfo component of a URI mapped to the CGI servlet. This issue affects Apache Tomcat: from 11.0.0…
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Medium 5.3
Apache Tomcat: Leaking of unrelated request bodies in default error page
Generation of Error Message Containing Sensitive Information vulnerability in Apache Tomcat.This issue affects Apache Tomcat: from 8.5.7 through 8.5.63, from 9.0.0-M11 through 9.0.43. Other, EOL versions may also be affected. Users are recommended to upgrade …
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Medium 6.1CVE-2023-41080 Public exploit
Apache Tomcat: Open redirect with FORM authentication
URL Redirection to Untrusted Site ('Open Redirect') vulnerability in FORM authentication feature Apache Tomcat.This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.0-M10, from 10.1.0-M1 through 10.0.12, from 9.0.0-M1 through 9.0.79 and from 8.5.0 thr…
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Medium 4.3
Apache Tomcat Open Redirect vulnerability
When the default servlet in Apache Tomcat versions 9.0.0.M1 to 9.0.11, 8.5.0 to 8.5.33 and 7.0.23 to 7.0.90 returned a redirect to a directory (e.g. redirecting to '/foo/' when the user requested '/foo') a specially crafted URL could be used to cause the redi…
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High 7.1
Improper Input Validation in Apache Tomcat
The code in Apache Tomcat 9.0.0.M1 to 9.0.0.M11, 8.5.0 to 8.5.6, 8.0.0.RC1 to 8.0.38, 7.0.0 to 7.0.72, and 6.0.0 to 6.0.47 that parsed the HTTP request line permitted invalid characters. This could be exploited, in conjunction with a proxy that also permitted…
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Unscored —CVE-2016-1240 Public exploit
The Tomcat init script in the tomcat7 package before 7.0.56-3+deb8u4 and tomcat8 package before 8.0.14-1+deb8u3 on Debi…
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High 8.8
Improper Access Control in Apache Tomcat
The session-persistence implementation in 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 mishandles session attributes, which allows remote authenticated users to bypass intended SecurityManager restrictions and…
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Medium —
Integer Overflow or Wraparound in Apache Tomcat
Integer overflow in the parseChunkHeader function in java/org/apache/coyote/http11/filters/ChunkedInputFilter.java in Apache Tomcat before 6.0.40, 7.x before 7.0.53, and 8.x before 8.0.4 allows remote attackers to cause a denial of service (resource consumpti…