Improper Authentication

Overview tomcat:catalina is a library that contains Tomcat Servlet Engine Core Classes and Standard implementations. Affected versions of this package are vulnerable to Improper Authentication when DIGEST authentication is configured. An attacker can gain unauthorized access by providing any...

Zitadel has a user enumeration vulnerability in Login UIs

Summary A user enumeration vulnerability has been discovered in Zitadel's login interfaces. An unauthenticated attacker can exploit this flaw to confirm the existence of valid user accounts by iterating through usernames and userIDs. Impact The login UIs in version 1 and 2 provide the possibility...

CVE-2024-41952

Zitadel is an open source identity management system. ZITADEL administrators can enable a setting called "Ignoring unknown usernames" which helps mitigate attacks that try to guess/enumerate usernames. If enabled, ZITADEL will show the password prompt even if the user doesn't exist and report...

EUVD-2025-8871

Malicious code in bioql PyPI...

GO-2024-3014 ZITADEL "ignoring unknown usernames" vulnerability in github.com/zitadel/zitadel

ZITADEL "ignoring unknown usernames" vulnerability in github.com/zitadel/zitadel. NOTE: The source advisory for this report contains additional versions that could not be automatically mapped to standard Go module versions. If this is causing false-positive reports from vulnerability scanners,...

ZITADEL 安全漏洞

ZITADEL is a modern open source alternative to Auth0, Firebase Auth, AWS Cognito, and Keycloak built for the age of containers and serverless, open sourced by ZITADEL in Switzerland. A security vulnerability exists in ZITADEL that stems from a logic error contained in the Ignoring unknown usernam...

PT-2021-14476 · Ampache · Ampache

Name of the Vulnerable Software and Affected Versions: Ampache versions prior to 4.4.1 Description: The issue allows unauthenticated access to Ampache using the subsonic API. To exploit this, an attacker must use a username that is not part of the site to bypass the auth checks. Recommendations:...

Linux: /etc/login.defs LOG_UNKFAIL_ENAB

The /etc/login.defs file defines the site-specific configuration for the shadow password suite. This file is required. Absence of this file will not prevent system operation, but will probably result in undesirable operation. LOGUNKFAILENAB boolean enables display of unknown usernames when login...

UBUNTU-CVE-2014-2855

The checksecret function in authenticate.c in rsync 3.1.0 and earlier allows remote attackers to cause a denial of service infinite loop and CPU consumption via a user name which does not exist in the secrets file...