Security Bulletin: Multiple vulnerabilities were addressed in IBM DataStax Enterprise 6.9.25

Summary Multiple vulnerabilities were addressed in IBM DataStax Enterprise 6.9.25 Vulnerability Details CVEID:CVE-2026-59083 DESCRIPTION: Improper Handling of URL Encoding Hex Encoding vulnerability in Apache Tomcat's rewrite valve allowed security constraint bypass for some configurations. This...

tomcat: Apache Tomcat: Denial of Service via AJP request

A flaw was found in Apache Tomcat. An unauthenticated remote attacker can send a specially crafted AJP Apache JServ Protocol request, causing an AJP processing thread to become unresponsive. This resource exhaustion can lead to a denial of service DoS, making the server unavailable to legitimate...

tomcat: Apache Tomcat: Denial of Service due to uncontrolled resource allocation

In Apache Tomcat, no limit was enforced on the request body for WebDAV LOCK or PROPFIND requests which were available to unauthenticated users. This allows a remote attacker to consume excessive resources, leading to Denial of Service DoS, making the affected system unavailable to legitimate user...

tomcat: Apache Tomcat: OCSP checks sometimes soft-fail with FFM even when soft-fail is disabled

A flaw was found in Apache Tomcat. When client certificate authentication is configured with strict certificate revocation checking, Online Certificate Status Protocol OCSP verification may improperly allow connections instead of failing as intended. A remote attacker presenting an invalid or...

tomcat: Apache Tomcat: Cross-context authentication mix-up via Jakarta Authentication misconfiguration

A flaw was found in Apache Tomcat. When Jakarta Authentication is configured with SimpleAuthConfigProvider as the default provider and multiple web applications utilize it, an improper authentication vulnerability arises. This issue causes the authentication realm established for the first web...

tomcat: Apache Tomcat: Denial of Service via malformed HTTP/2 request

A flaw was found in Apache Tomcat. An incomplete cleanup vulnerability allows a remote attacker to send a malformed HTTP/2 request. This can potentially cause a denial of service, leading to one request from another user failing...

tomcat: Apache Tomcat: Request smuggling vulnerability can lead to denial of service

A flaw was found in Apache Tomcat. This vulnerability, known as HTTP Request/Response Smuggling, occurs when Tomcat processes the transfer-encoding header for an HTTP/1.0 request while operating behind a reverse proxy. A remote attacker could exploit this to cause a denial of service, leading to...

tomcat: Apache Tomcat: TLS implementations ignore Certificate Revocation Lists

A flaw was found in Apache Tomcat. Both the OpenSSL and OpenSSL-FFM Transport Layer Security TLS implementations fail to properly check Certificate Revocation Lists CRLs when a certificate uses a keystore. This oversight could allow an attacker to use a revoked certificate, potentially leading to...

tomcat: Apache Tomcat: Denial of Service via busy wait during WebSocket close

A flaw was found in Apache Tomcat. An uncontrolled resource consumption vulnerability occurs when sending a WebSocket close message, which can lead to a busy wait condition. A remote attacker could exploit this to cause a Denial of Service DoS by making the server unresponsive...

tomcat: Apache Tomcat: Authentication Bypass in WebSocket Endpoints

A flaw was found in Apache Tomcat. This vulnerability, known as an 'Authentication Bypass by Alternate Name', allows an attacker to bypass the security restrictions set for WebSocket endpoints. This means that unauthorized users could gain access to protected resources or functionality, potential...

tomcat: Apache Tomcat: Race condition allows HTTP/2 request manipulation

A flaw was found in Apache Tomcat. This vulnerability, caused by a race condition during concurrent execution, allows an attacker to inject unauthorized data, known as trailer fields, into another user's HTTP/2 request. This could lead to the manipulation of web traffic or unintended information...

tomcat: Apache Tomcat: WebSocket message smuggling via improper length handling

A flaw was found in Apache Tomcat. This vulnerability, related to improper handling of length parameters, allows for WebSocket message smuggling when the 'per-message-deflate' extension is in use. A remote attacker could exploit this to bypass security controls or inject malicious data into...

tomcat: Apache Tomcat: Improper Authentication due to principal lookup failure

A flaw was found in Apache Tomcat. This improper authentication vulnerability allows a remote attacker to be authenticated even if their user account does not exist in the DataSourceRealm, under specific circumstances such as CLIENT-CERT or SPNEGO authentication. This can lead to unauthorized...

tomcat: Apache Tomcat: Denial of Service due to lost asynchronous WebSocket write timeouts

A flaw was found in Apache Tomcat. This vulnerability allows a remote attacker to cause a Denial of Service DoS by exploiting lost timeouts for asynchronous WebSocket writes. This can lead to the affected system becoming unresponsive or unavailable...

tomcat: Apache Tomcat: HTTP/2 request smuggling due to header mix-up

A flaw was found in Apache Tomcat. This vulnerability, identified as HTTP Request/Response smuggling, stems from an inconsistent interpretation of HTTP/2 requests. A regression in a prior security fix can cause request headers to be mixed up. This could allow a remote attacker to bypass security...

tomcat: Apache Tomcat: Denial of Service due to uncontrolled resource allocation

In Apache Tomcat, no limit was enforced on the request body for WebDAV LOCK or PROPFIND requests which were available to unauthenticated users. This allows a remote attacker to consume excessive resources, leading to Denial of Service DoS, making the affected system unavailable to legitimate user...

tomcat: Apache Tomcat: Improper Authentication due to principal lookup failure

A flaw was found in Apache Tomcat. This improper authentication vulnerability allows a remote attacker to be authenticated even if their user account does not exist in the DataSourceRealm, under specific circumstances such as CLIENT-CERT or SPNEGO authentication. This can lead to unauthorized...

tomcat: Apache Tomcat: TLS implementations ignore Certificate Revocation Lists

A flaw was found in Apache Tomcat. Both the OpenSSL and OpenSSL-FFM Transport Layer Security TLS implementations fail to properly check Certificate Revocation Lists CRLs when a certificate uses a keystore. This oversight could allow an attacker to use a revoked certificate, potentially leading to...

tomcat: Apache Tomcat: Cross-context authentication mix-up via Jakarta Authentication misconfiguration

A flaw was found in Apache Tomcat. When Jakarta Authentication is configured with SimpleAuthConfigProvider as the default provider and multiple web applications utilize it, an improper authentication vulnerability arises. This issue causes the authentication realm established for the first web...

tomcat: Apache Tomcat: Authentication Bypass in WebSocket Endpoints

A flaw was found in Apache Tomcat. This vulnerability, known as an 'Authentication Bypass by Alternate Name', allows an attacker to bypass the security restrictions set for WebSocket endpoints. This means that unauthorized users could gain access to protected resources or functionality, potential...