CVE-2025-6011
lowpriority · track · 0EPSS 0.004 · 29 %ileDEEURUUSEPSS · scored 2026-10-27
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.
cvss
Technical severity, 0–10. One row per scoring source.
base score 0–10 · higher = more severe · hover a vector to decode
ssvc
A stakeholder decision — act, attend, or track — from exploitation and impact.
weaknesses
The CWE weakness classes this flaw belongs to.
affected products (31)
Products and version ranges known to be affected.
advisories (4)
Vendor and ecosystem advisories describing this.
- WID-SEC-W-2025-1702Hashicorp Vault Community und Enterprise: Mehrere SchwachstellenDeutsch2025-08-03csaf · cert_bundDE
Ein Angreifer kann mehrere Schwachstellen in Hashicorp Vault ausnutzen, um erhöhte Rechte zu erlangen, Sicherheitsmaßnahmen zu umgehen, beliebigen Code auszuführen und vertrauliche Informationen preiszugeben.
- GHSA-mwgr-84fv-3jh9Hashicorp Vault has an Observable Discrepancy on Existing and Non-Existing Users2025-08-01ghsa · osvUS
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.
- BIT-vault-2025-6011Timing Side-Channel in Vault’s Userpass Auth Method2025-08-05vendor · osvUS
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.
- GO-2025-3839Hashicorp Vault has an Observable Discrepancy on Existing and Non-Existing Users in github.com/hashicorp/vault2025-08-11vendor · osvUS
Hashicorp Vault has an Observable Discrepancy on Existing and Non-Existing Users in github.com/hashicorp/vault
also known as (7)
Other names and identifiers for this entity.
sources
Which sources assert this record, and when.
references (3)
External citations — patches, advisories, analysis.
- https://discuss.hashicorp.com/t/hcsec-2025-15-timing-side-channel-in-vault-s-userpass-auth-method/76034cnnvd
- https://discuss.hashicorp.com/t/hcsec-2025-15-timing-side-channel-in-vault-s-userpass-auth-method/76034enisa_euvd
- https://discuss.hashicorp.com/t/hcsec-2025-15-timing-side-channel-in-vault-s-userpass-auth-method/76034Vendor Advisorynvd
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