CVE-2025-11621

high

Description

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

References

https://github.com/Nikhil-Ladha/cve-smasher-claude-plugin

https://github.com/advisories/GHSA-9g4h-h484-3578

https://euvd.enisa.europa.eu/vulnerability/EUVD-2025-35715

https://discuss.hashicorp.com/t/hcsec-2025-30-vault-aws-auth-method-authentication-bypass-through-mishandling-of-cache-entries/76709

Details

Source: Mitre, NVD

Published: 2025-10-23

Updated: 2025-12-29

Named Vulnerability: GO-2025-4070Named Vulnerability: GHSA-9g4h-h484-3578

Risk Information

CVSS v2

Base Score: 8.5

Vector: CVSS2#AV:N/AC:L/Au:S/C:C/I:C/A:N

Severity: High

CVSS v3

Base Score: 8.1

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

Severity: High

EPSS

EPSS: 0.00489