Security Bulletin: Vault AWS Auth Method Authentication Bypass Through Mishandling of Cache Entries

Summary Vault and Vault Enterprise’s “Vault” AWS Auth method may be susceptible to authentication bypass if the role of the configured boundprincipaliam 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...

Access Control System Vault Bound Principal IAM Bypass

The vulnerability of the boundprincipaliam component in the Access Control System Vault and the Corporate Information Archiving Platform Vault Enterprise involves exploiting authentication by using an alternative path or channel. Exploiting this vulnerability allows a malicious actor to circumven...

BIT-VAULT-2025-11621 Vault AWS auth method bypass due to AWS client cache

Vault and Vault Enterprise’s “Vault” AWS Auth method may be susceptible to authentication bypass if the role of the configured boundprincipaliam 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...

EUVD-2025-35715

HashiCorp Vault and Vault Enterprise's AWS Auth method may be susceptible to authentication bypass...

CVE-2025-11621

HashiCorp Vault and Vault Enterprise’s AWS Auth method is affected when the bound_principal_iam role is the same across AWS accounts or uses a wildcard, enabling an authentication bypass. The issue is fixed in Vault Community Edition 1.21.0 and Vault Enterprise in versions 1.21.0, 1.20.5, 1.19.11...