CVE-2025-6011
LOW3.7EPSS 0.12%Hashicorp Vault has an Observable Discrepancy on Existing and Non-Existing Users
Published: 8/1/2025Modified: 2/4/2026
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.
Affected packages (3)
- Bitnami/vaultfrom 0, < 1.20.1
- Go/github.com/hashicorp/vaultfrom 0, < 1.20.1
- Go/github.com/hashicorp/vaultfrom 0, < 1.20.1
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | LOW3.7 | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N |