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CVE-2025-11621

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Date: October 23, 2025

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

Severity Score

Related Resources (6)

https://discuss.hashicorp.com/t/hcsec-2025-30-vault-aws-auth-method-authentication-bypass-through-mishandling-of-cache-entries/76709
https://github.com/advisories/GHSA-9g4h-h484-3578
https://github.com/hashicorp/vault
https://nvd.nist.gov/vuln/detail/CVE-2025-11621
https://github.com/hashicorp/vault/commit/8d07273d14ae7f5a48cc96f66cc86615dea83390
https://www.mend.io/vulnerability-database/CVE-2025-11621

Severity Score

Weakness Type (CWE)

Authentication Bypass Using an Alternate Path or Channel

CWE-288

Top Fix

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Upgrade to version github.com/hashicorp/vault - v1.21.0

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CVSS v3.1

Base Score:
Attack Vector (AV): NETWORK
Attack Complexity (AC): LOW
Privileges Required (PR): LOW
User Interaction (UI): NONE
Scope (S): UNCHANGED
Confidentiality (C): HIGH
Integrity (I): HIGH
Availability (A): NONE

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