Improper Authentication

Overview org.apache.tomcat:tomcat-catalina is a Tomcat Servlet Engine Core Classes and Standard implementations. Affected versions of this package are vulnerable to Improper Authentication in the EncryptionInterceptor process of the cluster component. An attacker can gain unauthorized access or...

DEBIAN-CVE-2026-55955

Improper Authentication vulnerability in Apache Tomcat allowed a replay attack against the EncryptionInterceptor in the cluster component. This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.22, from 10.1.0-M1 through 10.1.55, from 9.0.13 through 9.0.18, from 8.5.38 through 8.5.100, fro...

CVE-2026-55955

Improper Authentication vulnerability in Apache Tomcat allowed a replay attack against the EncryptionInterceptor in the cluster component. This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.22, from 10.1.0-M1 through 10.1.55, from 9.0.13 through 9.0.18, from 8.5.38 through 8.5.100, fro...

UBUNTU-CVE-2026-55955

Improper Authentication vulnerability in Apache Tomcat allowed a replay attack against the EncryptionInterceptor in the cluster component. This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.22, from 10.1.0-M1 through 10.1.55, from 9.0.13 through 9.0.18, from 8.5.38 through 8.5.100, fro...

CVE-2026-55955

Improper Authentication vulnerability in Apache Tomcat allowed a replay attack against the EncryptionInterceptor in the cluster component. This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.22, from 10.1.0-M1 through 10.1.55, from 9.0.13 through 9.0.18, from 8.5.38 through 8.5.100, fro...

CVE-2026-55955

Improper Authentication vulnerability in Apache Tomcat allowed a replay attack against the EncryptionInterceptor in the cluster component. This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.22, from 10.1.0-M1 through 10.1.55, from 9.0.13 through 9.0.18, from 8.5.38 through 8.5.100, fro...

CVE-2026-55955 Apache Tomcat: EncryptInterceptor not protected against replay attacks

Improper Authentication vulnerability in Apache Tomcat allowed a replay attack against the EncryptionInterceptor in the cluster component. This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.22, from 10.1.0-M1 through 10.1.55, from 9.0.13 through 9.0.18, from 8.5.38 through 8.5.100, fro...

CVE-2026-55955 Apache Tomcat: EncryptInterceptor not protected against replay attacks

Improper Authentication vulnerability in Apache Tomcat allowed a replay attack against the EncryptionInterceptor in the cluster component. This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.22, from 10.1.0-M1 through 10.1.55, from 9.0.13 through 9.0.18, from 8.5.38 through 8.5.100, fro...

CVE-2026-55955

Improper Authentication vulnerability in Apache Tomcat allowed a replay attack against the EncryptionInterceptor in the cluster component. This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.22, from 10.1.0-M1 through 10.1.55, from 9.0.13 through 9.0.18, from 8.5.38 through 8.5.100, fro...

CVE-2026-55955

CVE-2026-55955 describes an improper authentication flaw in Apache Tomcat’s EncryptionInterceptor for Tribes clustering, allowing a replay attack. Affected versions include Tomcat 11.0.0-M1–11.0.22, 10.1.0-M1–10.1.55, 9.0.13–9.0.18, 8.5.38–8.5.100, and 7.0.100–7.0.109. Remediation is to upgrade t...

tomcat: Apache Tomcat: Replay attack via improper authentication in EncryptionInterceptor

A flaw was found in Apache Tomcat. An improper authentication vulnerability in the EncryptionInterceptor component allows a remote attacker to perform a replay attack. This could lead to unauthorized access or manipulation of data within the cluster component...

tomcat security update

1:9.0.117-1 - Resolves: RHEL-150714 Certificate revocation bypass due to improper OCSP response validation - Resolves: Tomcat: OCSP checks sometimes soft-fail with FFM even when soft-fail is disabled CVE-2026-34500 - Resolves: Tomcat: Cloud membership for clustering component exposed the Kubernet...

Oracle Linux 9 : tomcat (ELSA-2026-18916)

The remote Oracle Linux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2026-18916 advisory. - Resolves: Tomcat: OCSP checks sometimes soft-fail with FFM even when soft-fail is disabled CVE-2026-34500 - Resolves: Tomcat: Cloud membership for...

PT-2026-53744

Name of the Vulnerable Software and Affected Versions Apache Tomcat versions 11.0.0-M1 through 11.0.22 Apache Tomcat versions 10.1.0-M1 through 10.1.55 Apache Tomcat versions 9.0.13 through 9.0.18 Apache Tomcat versions 8.5.38 through 8.5.100 Apache Tomcat versions 7.0.100 through 7.0.109...

GO-2026-5628 Klever-Go KVM: Unauthenticated remote node crash (nil-pointer DoS) in klever-go P2P transaction interceptor (txVersionChecker nil RawData) - potential chain halt in github.com/klever-io/klever-go

Klever-Go KVM: Unauthenticated remote node crash nil-pointer DoS in klever-go P2P transaction interceptor txVersionChecker nil RawData - potential chain halt in github.com/klever-io/klever-go...

GO-2026-5462 Argo Vulnerable to Unauthenticated Memory Exhaustion (DoS) in Webhook Interceptor in github.com/argoproj/argo-workflows

Argo Vulnerable to Unauthenticated Memory Exhaustion DoS in Webhook Interceptor in github.com/argoproj/argo-workflows...

Oracle Linux 9 : tomcat (ELSA-2026-26323)

The remote Oracle Linux 9 host has packages installed that are affected by a vulnerability as referenced in the ELSA-2026-26323 advisory. - Resolves: Tomcat: OCSP checks sometimes soft-fail with FFM even when soft-fail is disabled CVE-2026-34500 - Resolves: Tomcat: Cloud membership for clustering...

Security Bulletin: Vulnerabilities found in Watson Data Intelligence

Summary Multiple Vulnerabilities were addressed in Watson Data Intelligence version 5.3.1-patch3. Vulnerability Details CVEID:CVE-2025-14917 DESCRIPTION: IBM WebSphere Application Server - Liberty 17.0.0.3 through 26.0.0.3 IBM WebSphere Application Server Liberty could provide weaker than expecte...

tomcat: Apache Tomcat: Replay attack via improper authentication in EncryptionInterceptor

A flaw was found in Apache Tomcat. An improper authentication vulnerability in the EncryptionInterceptor component allows a remote attacker to perform a replay attack. This could lead to unauthorized access or manipulation of data within the cluster component...

tomcat security update

1:9.0.117-1 - Resolves: RHEL-150714 Certificate revocation bypass due to improper OCSP response validation - Resolves: Tomcat: OCSP checks sometimes soft-fail with FFM even when soft-fail is disabled CVE-2026-34500 - Resolves: Tomcat: Cloud membership for clustering component exposed the Kubernet...