CVE-2026-58272 Sync-in Server has Username/Login Enumeration via Timing Side-Channel on POST /api/auth/login (incomplete fix of the prior timing-attack advisory)

Sync-in Server is an open-source platform for file storage, sharing, collaboration, and syncing. Versions prior to 2.4.1 contain an observable timing discrepancy in the login endpoint because authentication attempts for nonexistent accounts return without performing the bcrypt comparison used for...

CVE-2026-51926

An issue in docuForm GmbH FSM Client v.11.11c allows a remote attacker to obtain sensitive information via the login.php component. A vulnerability was identified in the authentication mechanism that allows user enumeration through the login interface. An attacker can differentiate between valid...

CVE-2026-34578

OPNsense is a FreeBSD based firewall and routing platform. Prior to 26.1.6, OPNsense's LDAP authentication connector passes the login username directly into an LDAP search filter without calling ldapescape. An unauthenticated attacker can inject LDAP filter metacharacters into the username field ...

EUVD-2026-20896

OPNsense is a FreeBSD based firewall and routing platform. Prior to 26.1.6, OPNsense's LDAP authentication connector passes the login username directly into an LDAP search filter without calling ldapescape. An unauthenticated attacker can inject LDAP filter metacharacters into the username field ...

CVE-2025-67807

The login mechanism of Sage DPW 202506004 displays distinct responses for valid and invalid usernames, allowing enumeration of existing accounts in versions before 202106000. On-premise administrators can toggle this behaviour in newer versions...

EUVD-2025-209168

The login mechanism of Sage DPW 202506004 displays distinct responses for valid and invalid usernames, allowing enumeration of existing accounts in versions before 202106000. On-premise administrators can toggle this behaviour in newer versions...

CVE-2025-67806

The login mechanism of Sage DPW 202106004 displays distinct responses for valid and invalid usernames, allowing enumeration of existing accounts in versions before 202106000. On-premise administrators can toggle this behavior in newer versions...

CVE-2025-67807

The login mechanism of Sage DPW 202506004 displays distinct responses for valid and invalid usernames, allowing enumeration of existing accounts in versions before 202106000. On-premise administrators can toggle this behaviour in newer versions...

CVE-2025-67807

The Sage DPW human resources system (version 2025_06_004 ) contains a vulnerability in its login mechanism. The system provides distinct responses for valid and invalid usernames, which allows for the enumeration of existing accounts in versions prior to 2021_06_000 . In newer versions, on-premis...

PT-2026-29529

The login mechanism of Sage DPW 2021 06 004 displays distinct responses for valid and invalid usernames, allowing enumeration of existing accounts in versions before 2021 06 000. On-premise administrators can toggle this behavior in newer versions...

SUSE CVE-2026-23511

ZITADEL is an open source identity management platform. Prior to 4.9.1 and 3.4.6, 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 an...

ZITADEL security vulnerabilities

ZITADEL is a modern open-source alternative to Auth0, Firebase Auth, AWS Cognito, and Keycloak, developed for the era of containers and serverless environments by ZITADEL in Switzerland. Versions of ZITADEL prior to 4.9.1 and 3.4.6 contain security vulnerabilities. These vulnerabilities stem from...

CVE-2021-33209

An issue was discovered in Fimer Aurora Vision before 2.97.10. The response to a failed login attempt discloses whether the username or password is wrong, helping an attacker to enumerate usernames. This can make a brute-force attack easier...

CVE-2024-55374

REDCap version 14.3.13 is vulnerable to username enumeration because the application returns different error messages based on whether a user exists during login attempts. An attacker can exploit this observable discrepancy by sending multiple HTTP authentication requests to perform brute-force a...

CVE-2025-59116

Windu CMS is vulnerable to User Enumeration. This issue occurs during logon, where a difference in messages could allow an attacker to determine if the login is valid or not, enabling a brute force attack with valid logins. Only version 4.1 was tested and confirmed as vulnerable. This issue was...

CVE-2025-59116

Windu CMS is vulnerable to User Enumeration. This issue occurs during logon, where a difference in messages could allow an attacker to determine if the login is valid or not, enabling a brute force attack with valid logins. Only version 4.1 was tested and confirmed as vulnerable. This issue was...

EUVD-2025-34904

ibexa/user login enumerates user accounts...

EUVD-2025-34831

D-Link Nuclias Connect firmware versions = 1.3.1.4 contain an observable response discrepancy vulnerability. The application's 'Login' endpoint returns distinct JSON responses depending on whether the supplied username is associated with an existing account. Because the responses differ in the...

CVE-2025-34254

D-Link Nuclias Connect: firmware

CVE-2025-34254 D-Link Nuclias Connect <= v1.3.1.4 Login Account Enumeration

D-Link Nuclias Connect firmware versions = 1.3.1.4 contain an observable response discrepancy vulnerability. The application's 'Login' endpoint returns distinct JSON responses depending on whether the supplied username is associated with an existing account. Because the responses differ in the...