Bug 2406096 (CVE-2025-11621)

Summary: CVE-2025-11621 github.com/hashicorp/vault: Vault AWS auth method bypass due to AWS client cache
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerabilityAssignee: Product Security DevOps Team <prodsec-dev>
Status: NEW --- QA Contact:
Severity: high Docs Contact:
Priority: high    
Version: unspecifiedCC: lball, manissin, ngough, veshanka
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Hardware: All   
OS: Linux   
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An authentication bypass flaw has been discovered in Hashicorp's vault product. Vault's 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.
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Description OSIDB Bzimport 2025-10-23 20:01:36 UTC
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