CVE-2025-6011

EUVD-2025-23395
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.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTPrimary
3.7 LOW
NETWORK
HIGH
NONE
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N
Base Score
CVSS 3.x
EPSS Score
Percentile: Unknown
Affected Products (NVD)
VendorProductVersion
hashicorpvault
𝑥
< 1.16.23
hashicorpvault
𝑥
< 1.20.1
hashicorpvault
1.17.0 ≤
𝑥
< 1.18.12
hashicorpvault
1.19.0 ≤
𝑥
< 1.19.7
hashicorpvault
1.20.0
𝑥
= Vulnerable software versions
Common Weakness Enumeration
References
https://discuss.hashicorp.com/t/hcsec-2025-15-timing-side-channel-in-vault-s-userpass-auth-method/76034