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CVE-2025-11621

Vault AWS auth method bypass due to AWS client cache

Published: Oct 23, 2025Updated: Dec 29, 2025 Sources: CVE List NVD GHSA BDUCWE-288
NVD MITRE
8.1CVSSHIGH
EPSS Score
0.5%
Top 61.8%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available

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

CVSS Vector Breakdown

AV:NAC:LPR:LUI:NS:UC:HI:HA:N
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:LPrivileges Required
Low
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:HConfidentiality
High
I:HIntegrity
High
A:NAvailability
None
Open in CVSS calculator →

Weaknesses

CWE-288

Affected Products

VaultHashiCorp
SaaSSaaS Service
Cloud & SaaS
Vault EnterpriseHashiCorp
SaaSSaaS Service
Cloud & SaaS
github.com/hashicorp/vaultGoOSS Libraries
vaulthashicorp
SaaSSaaS Service
Cloud & SaaS
РЕД ОСООО «Ред Софт»
On-premOS
Operating Systems / linux-distro
hashicorpcommercialUSCloud & SaaSaka hashicorp inc.
gopackage-ecosystemOSS Libraries
ооо «ред софт»commercialRUOperating Systemsaka red soft
and 8 more affected products View all →

Exploitability

Official Patch Available

References

https://discuss.hashicorp.com/t/hcsec-2025-30-vault-aws-auth-method-authentication-bypass-through-mishandling-of-cache-entries/76709
discuss.hashicorp.com
https://nvd.nist.gov/vuln/detail/CVE-2025-11621
nvd.nist.gov
https://github.com/hashicorp/vault/commit/8d07273d14ae7f5a48cc96f66cc86615dea83390
github.com
and 5 more references View all →

Timeline

Published
Oct 23, 2025
Last Updated
Dec 29, 2025

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