GitHub Advisoryadvisory · Go

GHSA-mwgr-84fv-3jh9 Hashicorp Vault has an Observable Discrepancy on Existing and Non-Existing Users

LOW Published 2025-08-01 Modified 2025-08-01 Official page ↗
Aliases
CVE-2025-6011
Ecosystem
Go
Packages
github.com/hashicorp/vault
Severity
Low
CVSS vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N
Weaknesses
CWE-203
Reviewed
2025-08-01

Affected packages

• Go github.com/hashicorp/vault: < 1.20.1 → fixed in 1.20.1

Description

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 1.20.1, 1.19.7, 1.18.12, and 1.16.23.

Related

Alias · CVE (1)

  • CVE-2025-6011 A timing side channel in Vault and Vault Enterprise’s (“Vault”) userpass auth method allowed an attacker to distinguish between existing… vulnerability

Weakness · CWE (1)

  • CWE-203 Observable Discrepancy weakness

References