CVE-2025-11621 HIGH

CVE-2025-11621: Vault AWS auth method bypass due to AWS client cache

Vendor Hashicorp
Product Vault
Weakness CWE-288
Published October 23, 2025
Last update February 26, 2026
View on NVD All CVEs

CVSS base score

8.1/10
Attack vector Network
Attack complexity Low
Privileges required Low
User interaction None
Confidentiality High
Integrity High

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N

What the vulnerability does

01Description

Vault and Vault Enterprise’s (“Vault”) AWS Auth method may be susceptible to authentication bypass if the role of the configured bound_principal_iam is the same across AWS accounts, or uses a wildcard. This vulnerability, CVE-2025-11621, is fixed in Vault Community Edition 1.21.0 and Vault Enterprise 1.21.0, 1.20.5, 1.19.11, and 1.16.27

Key dates

02Disclosure timeline

October 23, 2025 CVE published
February 26, 2026 Record updated