BIT-TOMCAT-2026-68569 Apache Tomcat: Principal lookup can fail open in some cases

Improper Authentication vulnerability in Apache Tomcat meant that in some circumstances e.g. CLIENT-CERT, SPNEGO that a user would be authenticated even if the user did not exist in the DataSourceRealm. This issue affects Apache Tomcat: from 11.0.0 through 11.0.24, from 10.1.0 through 10.1.57, fr...

Linux Distros Unpatched Vulnerability : CVE-2026-15576

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - Improper authentication in the agent receiver of Checkmk 2.5.0p10 allows an unauthenticated remote attacker to bypass mutual TLS client certificate verification...

CVE-2026-82547

A vulnerability was found in Linux Foundation Magma 1.9.0. The affected element is an unknown function of the file tasks/amf/amffsm.cpp of the component Registration Complete Message Handler. The manipulation results in improper authentication. The attack can be launched remotely. The exploit has...

EUVD-2026-68245

A vulnerability was found in Linux Foundation Magma 1.9.0. The affected element is an unknown function of the file tasks/amf/amffsm.cpp of the component Registration Complete Message Handler. The manipulation results in improper authentication. The attack can be launched remotely. The exploit has...

CVE-2026-82547

Linux Foundation Magma 1.9.0 contains an improper authentication vulnerability in the Registration Complete Message Handler (file tasks/amf/amf_fsm.cpp, unknown function). A remote attacker with no prior privileges and no user interaction can manipulate the handler to bypass authentication, resul...

CVE-2026-82547 Linux Foundation Magma Registration Complete Message amf_fsm.cpp improper authentication

A vulnerability was found in Linux Foundation Magma 1.9.0. The affected element is an unknown function of the file tasks/amf/amffsm.cpp of the component Registration Complete Message Handler. The manipulation results in improper authentication. The attack can be launched remotely. The exploit has...

EUVD-2026-67949

IBM Administration Runtime Expert for i 1R1M0 could allow a remote authenticated attacker to obtain sensitive information due to improper authentication enforcement...

EUVD-2026-67953

IBM Langflow OSS 1.0.0 through 1.11.1 could allow a remote attacker to execute arbitrary flows and access sensitive information due to improper authentication...

CVE-2026-17203

IBM Administration Runtime Expert for i 1R1M0 could allow a remote authenticated attacker to obtain sensitive information due to improper authentication enforcement...

CVE-2026-18891

IBM Langflow OSS 1.0.0 through 1.11.1 could allow a remote attacker to execute arbitrary flows and access sensitive information due to improper authentication...

CVE-2026-18891

IBM Langflow OSS 1.0.0 through 1.11.1 could allow a remote attacker to execute arbitrary flows and access sensitive information due to improper authentication...

CVE-2026-18891

IBM Langflow OSS versions 1.0.0 through 1.11.1 is affected by an improper authentication flaw (CWE-287) in the MCP project authentication function. When MCP Composer is enabled, the function omits the default auth_type=none value from the set of modes requiring an API key, causing unauthenticated...

CVE-2026-18891 Langflow is affected by multiple authentication bypass, path traversal, authorization, and server-side request forgery vulnerabilities

IBM Langflow OSS 1.0.0 through 1.11.1 could allow a remote attacker to execute arbitrary flows and access sensitive information due to improper authentication...

CVE-2026-17203

IBM Application Runtime Expert (ARE) for IBM i version V1R1M0 is vulnerable to improper authentication enforcement (CWE-287), allowing a remote authenticated attacker to obtain sensitive information. The CVSS 3.1 score is 7.5 (HIGH) with the vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N, in...

CVE-2026-17203 IBM Application Runtime Expert (ARE) for IBM i is vulnerable to a user gaining elevated privileges and sensitive information [, ].

IBM Administration Runtime Expert for i 1R1M0 could allow a remote authenticated attacker to obtain sensitive information due to improper authentication enforcement...

Security Bulletin: Multiple security vulnerabilites identified in open source libraries shipped with IBM Guardium Cryptography Manager (GCM)

Summary The vulnerabilities were found in dependent open source libraries used within IBM Guardium Cryptography Manager code base. These issues have been addressed by updating the versions of affected libraries. Vulnerability Details CVEID:CVE-2026-47838 DESCRIPTION: SubjectDnX509PrincipalExtract...

CVE-2026-81576 Improper Authentication of Session Handles

If configured as a server, CodeMeter Runtime before versions 8.41a and 9.10 issues handles per connection and relies on a cryptographically weak SID as sole authenticator. An attacker can brute-force the SID, recover another session's handle number, and read license information belonging to anoth...

CVE-2026-81576 Improper Authentication of Session Handles

If configured as a server, CodeMeter Runtime before versions 8.41a and 9.10 issues handles per connection and relies on a cryptographically weak SID as sole authenticator. An attacker can brute-force the SID, recover another session's handle number, and read license information belonging to anoth...

CVE-2026-81576

CodeMeter Runtime (WIBU), when configured as a server in versions before 8.41a and 9.10 , issues a per-connection session handle and relies on a cryptographically weak SID as the sole authenticator. An attacker with network access can brute-force the SID , recover another session's handle number,...

ownCloud Improper Authentication Vulnerability

ownCloud contains an improper authentication vulnerability that allows an attacker to access, modify, or delete any file without authentication if the username of a victim is known, and the victim has no signing-key configured...