PT-2026-50713

Name of the Vulnerable Software and Affected Versions Webmin versions prior to 2.641 Description Webmin accepts basic authentication without session cookies when an attacker provides the 'User-Agent: webmin' header. This behavior allows the bypass of additional multi-factor authentication MFA...

Splunk Enterprise Missing Authentication for Critical Function Vulnerability

Splunk Enterprise contains a missing authentication for critical function vulnerability which could allow an unauthenticated user to create or truncate arbitrary files through a PostgreSQL sidecar service endpoint...

CVE-2026-12566

The dockerpull module uses the realm parameter from a Docker registry's WWW-Authenticate response header as the authentication endpoint without validation. An attacker in a man-in-the-middle position between bbot and a Docker registry could modify this header to redirect the authentication reques...

CVE-2024-27928

vantage6 is an open-source infrastructure for privacy preserving analysis. Prior to version 5.0.0, if an attacker hacks into a vantage6 user's email account, they can 1 reset the password via email and then 2 reset the 2FA token via email. This way they reduce 2FA to 1FA email access. Note that...

Important: Red Hat Security Advisory: Red Hat build of Apache Camel 4.18 for Quarkus 3.33 security update

A security update for Red Hat build of Apache Camel 4.18 for Quarkus 3.33 is now available. This text-only errata provides information about enhancements that improve your developer experience and ensure the security and stability of your applications. Red Hat Product Security has rated this upda...

CVE-2026-48991

XianYuLauncher is a Minecraft Java Edition launcher. In versions prior to 1.5.5, sensitive authentication artifacts could be exposed during a user-initiated login under certain local attack conditions. Affected versions relied on a fixed localhost redirect URI without PKCE or state validation...

CVE-2026-12566 SSRF via unvalidated WWW-Authenticate realm in docker_pull module

The dockerpull module uses the realm parameter from a Docker registry's WWW-Authenticate response header as the authentication endpoint without validation. An attacker in a man-in-the-middle position between bbot and a Docker registry could modify this header to redirect the authentication reques...

CVE-2026-48991 XianYuLauncher: Legacy Microsoft account OAuth sign-in flow lacks PKCE and state validation

XianYuLauncher is a Minecraft Java Edition launcher. In versions prior to 1.5.5, sensitive authentication artifacts could be exposed during a user-initiated login under certain local attack conditions. Affected versions relied on a fixed localhost redirect URI without PKCE or state validation...

CVE-2026-8049 CVE-2026-8049

In SignalRGB versions prior to 1.3.7.0, the \.\SignalIo device object is created without an explicit SDDL security descriptor and without FILEDEVICESECUREOPEN. This results in overly permissive default access control, allowing any authenticated local user to obtain a handle to the device and issu...

Important: Red Hat Security Advisory: Red Hat build of Quarkus 3.20.6.SP2 security update

An update is now available for Red Hat build of Quarkus. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is available for each vulnerability. For more informatio...

CVE-2026-55199

libssh2 through 1.11.1, fixed in commit 1762685, contains a pre-authentication denial of service vulnerability in the SSHMSGEXTINFO handler in src/packet.c that allows a malicious SSH server to cause a client CPU exhaustion loop by sending a crafted extension count value. A malicious server can s...

UBUNTU-CVE-2026-55199

libssh2 through 1.11.1, fixed in commit 1762685, contains a pre-authentication denial of service vulnerability in the SSHMSGEXTINFO handler in src/packet.c that allows a malicious SSH server to cause a client CPU exhaustion loop by sending a crafted extension count value. A malicious server can s...

CVE-2026-55196

Hermes WebUI before 0.51.409 contains an authentication bypass vulnerability in passkey registration endpoints that allows unauthenticated remote attackers to register arbitrary passkeys. When HERMESWEBUIPASSKEY=1 is enabled with no existing credentials, POST /api/auth/passkey/register/options an...

CVE-2026-55202 Tinyproxy - Stathost Detection Bypass via Host Header Manipulation

Tinyproxy through 1.11.3, fixed in commit 09312a1, fails to properly validate the Host header during stathost detection, allowing unauthenticated attackers to access the stats page by injecting a matching Host header or bypass detection via port manipulation. Remote attackers can trigger...

NTLM Relay to Self (HTTP to LDAP) - Post Exploitation

This module performs an NTLM relay-to-self privilege escalation attack. It starts an HTTP-to-LDAP relay server on the compromised host, then triggers the WebClient service via an ETW event allowing a low-privilege user to start it, and coerces the local machine account to authenticate via...

CVE-2026-55199

CVE-2026-55199 affects libssh2 up to version 1.11.1. The vulnerability lies in the SSH_MSG_EXT_INFO handler (src/packet.c), where return values from _libssh2_get_string() are unchecked. During key exchange, a malicious SSH server can set nr_extensions to 0xFFFFFFFF, causing the client to spin in ...

CVE-2026-55199 libssh2 - Pre-Authentication DoS via SSH_MSG_EXT_INFO Handler

libssh2 through 1.11.1, fixed in commit 1762685, contains a pre-authentication denial of service vulnerability in the SSHMSGEXTINFO handler in src/packet.c that allows a malicious SSH server to cause a client CPU exhaustion loop by sending a crafted extension count value. A malicious server can s...

EUVD-2026-37782

libssh2 through 1.11.1, fixed in commit 1762685, contains a pre-authentication denial of service vulnerability in the SSHMSGEXTINFO handler in src/packet.c that allows a malicious SSH server to cause a client CPU exhaustion loop by sending a crafted extension count value. A malicious server can s...

GHSA-X96M-RH44-VGV8 Apache Shiro: LDAP DN Injection in DefaultLdapRealm

A remote attacker can inject LDAP special characters into the Distinguished Name DN construction in DefaultLdapRealm class. User-supplied username input is directly concatenated into the LDAP DN template without any escaping of RFC 2253 special characters. This allows an attacker to manipulate th...

EUVD-2026-37640

Subscriber Broken Authentication in Melhor Envio = 2.16.3 versions...