CVE-2025-11621
Vault AWS auth method bypass due to AWS client cache
8.1
HIGH
CVSS 3.1
EPSS 0.08%
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
How to fix CVE-2025-11621
To remediate CVE-2025-11621, upgrade the affected package to a fixed version below.
- —upgrade to 1.21.0 or later
- —upgrade to 1.21.0 or later
- —upgrade to 1.21.0 or later
Is CVE-2025-11621 being exploited?
Low — EPSS is 0.1%, meaning exploitation activity has not been observed at scale.
Affected packages (3)
- >= 0.6.0, < 1.21.0
- >= 0.6.0, < 1.21.0
- >= 0.6.0, < 1.21.0
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | HIGH8.1 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N |