Apache Tomcat Examples Web Application - Cross-Site Scripting

Apache Tomcat 8.5.50 to 8.5.81, 9.0.30 to 9.0.64, 10.0.0-M1 to 10.0.22, and 10.1.0-M1 to 10.1.0-M16 contain a reflected cross-site scripting caused by displaying unfiltered user data in the Form authentication example, letting attackers execute scripts in victim browsers, exploit requires attacke...

The vulnerability of the FORM authentication process on Apache Tomcat servers allows attackers to circumvent security restrictions.

The vulnerability of the FORM authentication process on Apache Tomcat servers is related to deficiencies in the authorization mechanism. Exploiting this vulnerability allows a malicious actor to bypass security restrictions remotely...

tomcat: Apache Tomcat: Unauthorized resource access via FORM authentication bypass

A flaw was found in Apache Tomcat. This incorrect authorization vulnerability occurs within the FORM authentication process, allowing a user to bypass security constraints. This bypass enables unauthorized access to resources via a GET request, even when those resources are intended to be...

tomcat: Apache Tomcat: Unauthorized resource access via FORM authentication bypass

A flaw was found in Apache Tomcat. This incorrect authorization vulnerability occurs within the FORM authentication process, allowing a user to bypass security constraints. This bypass enables unauthorized access to resources via a GET request, even when those resources are intended to be...

tomcat: Apache Tomcat: Unauthorized resource access via FORM authentication bypass

A flaw was found in Apache Tomcat. This incorrect authorization vulnerability occurs within the FORM authentication process, allowing a user to bypass security constraints. This bypass enables unauthorized access to resources via a GET request, even when those resources are intended to be...

tomcat: Apache Tomcat: Unauthorized resource access via FORM authentication bypass

A flaw was found in Apache Tomcat. This incorrect authorization vulnerability occurs within the FORM authentication process, allowing a user to bypass security constraints. This bypass enables unauthorized access to resources via a GET request, even when those resources are intended to be...

AlmaLinux 9.2 [TuxCare] Security Update: tomcat / tomcat-admin-webapps / tomcat-docs-webapp / etc Multiple Vulnerabilities (ALMALINUX9.2:CLSA-2026:1779465287)

The AlmaLinux 9.2 host has packages installed that are affected by multiple vulnerabilities as referenced in the TuxCare ALMALINUX9.2:CLSA-2026:1779465287 advisory. - In Apache Tomcat 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 the Form authentication...

Astra Linux – Vulnerability in Tomcat9

An incorrect authorization vulnerability in Apache Tomcat’s FORM authentication process allows for bypassing a security constraint that restricts users’ access to resources via POST requests, but not via GET requests. This issue affects Apache Tomcat versions from 11.0.0-M1 through 11.0.24, from...

Astra Linux – Vulnerability in Tomcat9

URL redirection to untrusted sites “open redirect” vulnerability in FORM authentication with Apache Tomcat. This issue affects Apache Tomcat versions as follows: 11.0.0-M1 through 11.0.0-M10, 10.1.0-M1 through 10.0.12, 9.0.0-M1 through 9.0.79, and 8.5.0 through 8.5.92. Older, end-of-life versions...

BIT-TOMCAT-2026-68525 Apache Tomcat: Redirect after FORM auth may bypass method specific constraints

Incorrect Authorization vulnerability in Apache Tomcat's FORM authentication process allows the bypassing of a security constraint that limits user has access to a resource POST but not GET. This issue affects Apache Tomcat: from 11.0.0 through 11.0.24, from 10.1.0 through 10.1.57, from 9.0.0...

K000163239: Multiple Apache Tomcat vulnerabilities

Security Advisory Description CVE-2026-65182 Improper Access Control, Incorrect Authorization vulnerability in Apache Tomcat leads to security constraint bypass if a constraint for a longer path is specified before a more restrictive constraint for a shorter sub-path. This issue affects Apache...

tomcat: Apache Tomcat: Unauthorized resource access via FORM authentication bypass

A flaw was found in Apache Tomcat. This incorrect authorization vulnerability occurs within the FORM authentication process, allowing a user to bypass security constraints. This bypass enables unauthorized access to resources via a GET request, even when those resources are intended to be...

CVE-2026-68525

A flaw was found in Apache Tomcat. This incorrect authorization vulnerability occurs within the FORM authentication process, allowing a user to bypass security constraints. This bypass enables unauthorized access to resources via a GET request, even when those resources are intended to be...

SUSE CVE-2026-68525

Incorrect Authorization vulnerability in Apache Tomcat's FORM authentication process allows the bypassing of a security constraint that limits user has access to a resource POST but not GET. This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.24, from 10.1.0-M1 through 10.1.57, from...

Incorrect Authorization

Overview org.apache.tomcat:tomcat is an implementation of the Java Servlet, JavaServer Pages, Java Expression Language and Java WebSocket technologies. Affected versions of this package are vulnerable to Incorrect Authorization via the FormAuthenticator and AuthenticatorBase FORM authentication...

Incorrect Authorization

Overview org.apache.tomcat.embed:tomcat-embed-core is a Core Tomcat implementation. Affected versions of this package are vulnerable to Incorrect Authorization via the FormAuthenticator and AuthenticatorBase FORM authentication flow. An attacker can bypass a security constraint that allows access...

Incorrect Authorization

Overview org.apache.tomcat:tomcat-catalina is a Tomcat Servlet Engine Core Classes and Standard implementations. Affected versions of this package are vulnerable to Incorrect Authorization via the FormAuthenticator and AuthenticatorBase FORM authentication flow. An attacker can bypass a security...

EUVD-2026-66132

Incorrect Authorization vulnerability in Apache Tomcat's FORM authentication process allows the bypassing of a security constraint that limits user has access to a resource POST but not GET. This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.24, from 10.1.0-M1 through 10.1.57, from...

GHSA-H3X4-894J-XPX5 Apache Tomcat's FORM authentication process has an Incorrect Authorization vulnerability

Incorrect Authorization vulnerability in Apache Tomcat's FORM authentication process allows the bypassing of a security constraint that limits user has access to a resource POST but not GET. This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.24, from 10.1.0-M1 through 10.1.57, from...

Apache Tomcat's FORM authentication process has an Incorrect Authorization vulnerability

Incorrect Authorization vulnerability in Apache Tomcat's FORM authentication process allows the bypassing of a security constraint that limits user has access to a resource POST but not GET. This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.24, from 10.1.0-M1 through 10.1.57, from...