CVE-2025-54999 OpenBao: Timing Side-Channel in Userpass Auth Method

OpenBao exists to provide a software solution to manage, store, and distribute sensitive data including secrets, certificates, and keys. In versions 0.1.0 through 2.3.1, when using OpenBao's userpass auth method, user enumeration was possible due to timing difference between non-existent users an...

CVE-2025-54998

CVE-2025-54998 affects OpenBao versions 0.1.0–2.3.1, where an aliasing mismatch between pre-flight and full login user entity attributes allowed bypass of automatic user lockout in Userpass/LDAP auth. The issue is fixed in version 2.3.2. Remediation: upgrade to 2.3.2; as a workaround, apply rate-...

OpenBao has a Timing Side-Channel in the Userpass Auth Method

Impact When using OpenBao's userpass auth method, user enumeration was possible due to timing difference between non-existent users and users with stored credentials. This is independent of whether the supplied credentials were valid for the given user. Patches OpenBao v2.3.2 will patch this issu...

OpenBao Userpass and LDAP User Lockout Bypass

Impact Attackers could bypass the automatic user lockout mechanisms in the OpenBao Userpass or LDAP auth systems. This was caused by different aliasing between pre-flight and full login request user entity alias attributions. Patches OpenBao v2.3.2 will patch this issue. Workarounds Existing user...

GHSA-J3XV-7FXP-GFHX OpenBao Userpass and LDAP User Lockout Bypass

Impact Attackers could bypass the automatic user lockout mechanisms in the OpenBao Userpass or LDAP auth systems. This was caused by different aliasing between pre-flight and full login request user entity alias attributions. Patches OpenBao v2.3.2 will patch this issue. Workarounds Existing user...

PT-2025-32381

Name of the Vulnerable Software and Affected Versions OpenBao versions 0.1.0 through 2.3.1 Description OpenBao is a software solution designed for managing, storing, and distributing sensitive data, including secrets, certificates, and keys. In versions 0.1.0 through 2.3.1, user enumeration was...

CVE-2025-6011

A flaw was found in github.com/hashicorp/vault. The Userpass authentication method exhibits a timing vulnerability, allowing an attacker to determine whether a username exists within Vault by measuring response times, and enables potential enumeration of valid usernames. This vulnerability allows...

BIT-VAULT-2025-6011 Timing Side-Channel in Vault’s Userpass Auth Method

A timing side channel in Vault and Vault Enterprise’s “Vault” userpass auth method allowed an attacker to distinguish between existing and non-existing users, and potentially enumerate valid usernames for Vault’s Userpass auth method. Fixed in Vault Community Edition 1.20.1 and Vault Enterprise...

BIT-VAULT-2025-6004 Vault Userpass and LDAP User Lockout Bypass

Vault and Vault Enterprise’s “Vault” user lockout feature could be bypassed for Userpass and LDAP authentication methods. Fixed in Vault Community Edition 1.20.1 and Vault Enterprise 1.20.1, 1.19.7, 1.18.12, and 1.16.23...

Improper Handling of Case Sensitivity

Overview Affected versions of this package are vulnerable to Improper Handling of Case Sensitivity via the pathLoginAliasLookahead implementation. An attacker can gain unauthorized access and bypass authentication restrictions by leveraging inconsistent case-sensitivity checks. Remediation Upgrad...

Hashicorp Vault has Lockout Feature Authentication Bypass

Vault and Vault Enterprise’s “Vault” user lockout feature could be bypassed for Userpass and LDAP authentication methods. Fixed in Vault Community Edition 1.20.1 and Vault Enterprise 1.20.1, 1.19.7, 1.18.12, and 1.16.23...

GHSA-MWGR-84FV-3JH9 Hashicorp Vault has an Observable Discrepancy on Existing and Non-Existing Users

A timing side channel in Vault and Vault Enterprise’s “Vault” userpass auth method allowed an attacker to distinguish between existing and non-existing users, and potentially enumerate valid usernames for Vault’s Userpass auth method. Fixed in Vault Community Edition 1.20.1 and Vault Enterprise...

Timing Attack

Overview Affected versions of this package are vulnerable to Timing Attack via pathLogin. An attacker can determine whether a username exists by measuring response times. Remediation Upgrade github.com/hashicorp/vault/builtin/credential/userpass to version 1.20.1 or higher. References - GitHub...

GHSA-QGJ7-FMQ2-6CC4 Hashicorp Vault has Lockout Feature Authentication Bypass

Vault and Vault Enterprise’s “Vault” user lockout feature could be bypassed for Userpass and LDAP authentication methods. Fixed in Vault Community Edition 1.20.1 and Vault Enterprise 1.20.1, 1.19.7, 1.18.12, and 1.16.23...

CVE-2025-6004

Vault and Vault Enterprise’s “Vault” user lockout feature could be bypassed for Userpass and LDAP authentication methods. Fixed in Vault Community Edition 1.20.1 and Vault Enterprise 1.20.1, 1.19.7, 1.18.12, and 1.16.23...

CVE-2025-6011 Timing Side-Channel in Vault’s Userpass Auth Method

A timing side channel in Vault and Vault Enterprise’s “Vault” userpass auth method allowed an attacker to distinguish between existing and non-existing users, and potentially enumerate valid usernames for Vault’s Userpass auth method. Fixed in Vault Community Edition 1.20.1 and Vault Enterprise...

CVE-2025-6011 Timing Side-Channel in Vault’s Userpass Auth Method

A timing side channel in Vault and Vault Enterprise’s “Vault” userpass auth method allowed an attacker to distinguish between existing and non-existing users, and potentially enumerate valid usernames for Vault’s Userpass auth method. Fixed in Vault Community Edition 1.20.1 and Vault Enterprise...

CVE-2025-6011 Timing Side-Channel in Vault’s Userpass Auth Method

A timing side channel in Vault and Vault Enterprise’s “Vault” userpass auth method allowed an attacker to distinguish between existing and non-existing users, and potentially enumerate valid usernames for Vault’s Userpass auth method. Fixed in Vault Community Edition 1.20.1 and Vault Enterprise...

CVE-2025-6004 Vault Userpass and LDAP User Lockout Bypass

Vault and Vault Enterprise’s “Vault” user lockout feature could be bypassed for Userpass and LDAP authentication methods. Fixed in Vault Community Edition 1.20.1 and Vault Enterprise 1.20.1, 1.19.7, 1.18.12, and 1.16.23...

CVE-2025-6004

CVE-2025-6004 describes a bypass of Vault’s user lockout feature for Userpass and LDAP authentication. Root cause details are not fully enumerated in the provided docs, but fixes are stated: Vault Community Edition 1.20.1 and Vault Enterprise 1.20.1, 1.19.7, 1.18.12, and 1.16.23 address the issue...