CVE-2025-6011
Timing Side-Channel in Vault’s Userpass Auth Method
3.7
LOW
CVSS 3.1
EPSS 0.12%
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.
How to fix CVE-2025-6011
To remediate CVE-2025-6011, upgrade the affected package to a fixed version below.
- —upgrade to 1.20.1 or later
- —upgrade to 1.20.1 or later
- —upgrade to 1.20.1 or later
Is CVE-2025-6011 being exploited?
Low — EPSS is 0.1%, meaning exploitation activity has not been observed at scale.
Affected packages (3)
- from 0, < 1.20.1
- from 0, < 1.20.1
- from 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 |