CVE-2026-80199 Kimai before 2.54.0 Username Enumeration via Timing Oracle

Kimai before 2.54.0 contains a timing oracle vulnerability in TokenAuthenticator that allows unauthenticated attackers to enumerate valid usernames via X-AUTH-USER header. Attackers can measure response time differences when the password hasher runs only for existing users, enabling username...

CVE-2026-80199 Kimai before 2.54.0 Username Enumeration via Timing Oracle

Kimai before 2.54.0 contains a timing oracle vulnerability in TokenAuthenticator that allows unauthenticated attackers to enumerate valid usernames via X-AUTH-USER header. Attackers can measure response time differences when the password hasher runs only for existing users, enabling username...

CVE-2026-80199

Kimai before 2.54.0 contains a timing oracle vulnerability in the TokenAuthenticator component. An unauthenticated attacker can enumerate valid usernames by measuring response time differences when sending requests via the X-AUTH-USER header, since the password hasher only executes for existing u...

PT-2026-81912

Kimai before 2.54.0 contains a timing oracle vulnerability in TokenAuthenticator that allows unauthenticated attackers to enumerate valid usernames via X-AUTH-USER header. Attackers can measure response time differences when the password hasher runs only for existing users, enabling username...

CVE-2026-78551

RansomLook contains multiple weaknesses in its authentication endpoint that allow an unauthenticated remote attacker to enumerate valid usernames, perform unrestricted password-guessing attacks, and potentially exhaust application worker resources. For local authentication, the login implementati...

EUVD-2026-65085

RansomLook contains multiple weaknesses in its authentication endpoint that allow an unauthenticated remote attacker to enumerate valid usernames, perform unrestricted password-guessing attacks, and potentially exhaust application worker resources. For local authentication, the login implementati...

CVE-2026-78551

RansomLook 's /login endpoint contained two distinct authentication weaknesses exploitable by an unauthenticated remote attacker. First, a timing-based username enumeration was possible because the password hash verification function was only invoked for existing accounts, producing measurably di...

CVE-2026-78551 RansomLook Login Endpoint Allows Timing-Based Username Enumeration and Unthrottled Authentication Attempts

RansomLook contains multiple weaknesses in its authentication endpoint that allow an unauthenticated remote attacker to enumerate valid usernames, perform unrestricted password-guessing attacks, and potentially exhaust application worker resources. For local authentication, the login implementati...

CVE-2026-78551 RansomLook Login Endpoint Allows Timing-Based Username Enumeration and Unthrottled Authentication Attempts

RansomLook contains multiple weaknesses in its authentication endpoint that allow an unauthenticated remote attacker to enumerate valid usernames, perform unrestricted password-guessing attacks, and potentially exhaust application worker resources. For local authentication, the login implementati...

CVE-2026-44255 Wazuh: Username Enumeration via Timing Side-Channel

Wazuh is a free and open source platform used for threat prevention, detection, and response. From 4.0.0 until 4.14.6 and 5.0.0-beta2, AuthenticationManager.checkuser in framework/wazuh/rbac/orm.py performs checkpasswordhash only when the supplied username exists. A nonexistent username returns...

CVE-2026-44255

Wazuh (open-source threat prevention, detection, and response platform) is vulnerable to username enumeration via a timing side-channel in AuthenticationManager.check_user() within framework/wazuh/rbac/orm.py. The function performs an expensive bcrypt hash check only when the supplied username ex...

CVE-2026-44255 Wazuh: Username Enumeration via Timing Side-Channel

Wazuh is a free and open source platform used for threat prevention, detection, and response. From 4.0.0 until 4.14.6 and 5.0.0-beta2, AuthenticationManager.checkuser in framework/wazuh/rbac/orm.py performs checkpasswordhash only when the supplied username exists. A nonexistent username returns...

EUVD-2026-62558

Wazuh is a free and open source platform used for threat prevention, detection, and response. From 4.0.0 until 4.14.6 and 5.0.0-beta2, AuthenticationManager.checkuser in framework/wazuh/rbac/orm.py performs checkpasswordhash only when the supplied username exists. A nonexistent username returns...

PT-2026-78674

Name of the Vulnerable Software and Affected Versions Lemmy versions prior to 0.19.19 Lemmy versions prior to 1.0.0-beta.1 Description The login endpoint in crates/api/api/src/local user/login.rs exhibits a response discrepancy based on the existence of a user account. The function...

CVE-2025-13736 Username Enumeration via Login Interface in Multiple WSO2 Products Allows User Account Discovery

When Multi-Attribute Login is enabled, the login interface fails to consistently mask the existence of user accounts. For valid users, the server resolves and displays their canonical username, while for non-existent users, it echoes the original input. This occurs regardless of the...

CVE-2026-14202

Bilin Software’s HUMANIST Digital Human Resources (versions before 26.1) suffers a username enumeration flaw via observable differences in login responses, enabling account footprinting. CVSS 3.1 base score 5.3 (Network, Low attack complexity, No privileges, No user interaction). Exploitation sta...

CVE-2026-14202 Username Enumeration via Differential Login Responses in Bilin Software's HUMANIST Digital Human Resources

Observable response discrepancy vulnerability in Bilin Software and Informatics Consultancy Inc. HUMANIST Digital Human Resources allows Account Footprinting. This issue affects HUMANIST Digital Human Resources: from 26.0 before 26.1...

CVE-2026-8794

PaperCut NG/MF contains an observable timing discrepancy in its authentication component. An unauthenticated remote attacker can exploit this vulnerability to perform username enumeration by measuring response times during login attempts. The system executes a password hash comparison only when a...

EUVD-2026-52225

PaperCut NG/MF contains an observable timing discrepancy in its authentication component. An unauthenticated remote attacker can exploit this vulnerability to perform username enumeration by measuring response times during login attempts. The system executes a password hash comparison only when a...

CVE-2026-8794

PaperCut NG/MF is affected by a timing-based user enumeration vulnerability in its authentication component. An unauthenticated remote attacker can detect whether a login target exists by measuring response times, since the system only performs a password hash comparison after confirming a valid ...