Vault AWS auth method bypass due to AWS client cache
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Security bypass
- Confidentiality · integrity · availability
- High · High · None
- Fix status
- Partial Red Hat: 2 fixed, 3 without a fix
Attack profile from CVSS 3.1 · CNA. Fix status from CNA, GitHub and Red Hat. Impact type from CWE-288.
Summary
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
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Total
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| HashiCorp | Vault | 0.6.0 to before 1.21.0 | 1.21.0 | Patch available | CNA |
| HashiCorp | Vault Enterprise | 0.6.0 to before 1.21.0 | 1.21.0 | Patch available | CNA |
| — | github.com/hashicorp/vault (Go) | 0.6.0 to before 1.21.0 | 1.21.0 | Patch available | GHSA-9g4h-h484-3578 |
- Vault VendorHashiCorp Affected 0.6.0 to before 1.21.0 Fixed in 1.21.0 Patch available CNA
- Vault Enterprise VendorHashiCorp Affected 0.6.0 to before 1.21.0 Fixed in 1.21.0 Patch available CNA
- github.com/hashicorp/vault (Go) Vendor— Affected 0.6.0 to before 1.21.0 Fixed in 1.21.0 Patch available GHSA-9g4h-h484-3578
CPE configurations NVD · 3
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:hashicorp:vault:*:*:*:*:enterprise:*:*:* | 0.6.0 to before 1.16.27 | Vulnerable | HashiCorp |
| cpe:2.3:a:hashicorp:vault:*:*:*:*:-:*:*:* | 0.6.0 to before 1.21.0 | Vulnerable | HashiCorp |
| cpe:2.3:a:hashicorp:vault:*:*:*:*:enterprise:*:*:* | 1.18.0 – 1.18.15; 1.19.0 to before 1.19.11; 1.20.0 to before 1.20.5 | Vulnerable | HashiCorp |
- cpe:2.3:a:hashicorp:vault:*:*:*:*:enterprise:*:*:* Versions 0.6.0 to before 1.16.27 Vulnerable ·HashiCorp
- cpe:2.3:a:hashicorp:vault:*:*:*:*:-:*:*:* Versions 0.6.0 to before 1.21.0 Vulnerable ·HashiCorp
- cpe:2.3:a:hashicorp:vault:*:*:*:*:enterprise:*:*:* Versions 1.18.0 – 1.18.15; 1.19.0 to before 1.19.11; 1.20.0 to before 1.20.5 Vulnerable ·HashiCorp
Remediation
- Fix · CNA Vault (HashiCorp) Fixed in 1.21.0
- Fix · CNA Vault Enterprise (HashiCorp) Fixed in 1.21.0
- Fix · GHSA-9g4h-h484-3578 github.com/hashicorp/vault (Go) Fixed in 1.21.0 Advisory →
Red Hat 6 advisories
- RHSA-2026:3827 Released 2026-03-05 · Red Hat rating ImportantRed Hat OpenShift Pipelines Release 1.20.3
- Red Hat OpenShift Pipelines 1.20 registry.redhat.io/openshift-pipelines/pipelines-cli-tkn-rhel9, registry.redhat.io/openshift-pipelines/pipelines-serve-tkn-cli-rhel9
- RHSA-2025:22058 Released 2025-11-25 · Red Hat rating ImportantRHTAS 1.3.1 - Tech Preview Release Of the Policy Controller Operator
- Red Hat Trusted Artifact Signer 1.3 registry.redhat.io/rhtas/policy-controller-rhel9
- RHSA-2025:21988 Released 2025-11-24 · Red Hat rating ImportantRHTAS 1.3.1 - Red Hat Trusted Artifact Signer Release
- Red Hat Trusted Artifact Signer 1.3 registry.redhat.io/rhtas/client-server-rhel9, registry.redhat.io/rhtas/cosign-rhel9, registry.redhat.io/rhtas/gitsign-rhel9
Show 3 more Red Hat advisories
- RHSA-2025:21984 Released 2025-11-24 · Red Hat rating ImportantRHTAS 1.3.1 - Red Hat Trusted Artifact Signer Release
- Red Hat Trusted Artifact Signer 1.3 registry.redhat.io/rhtas/timestamp-authority-rhel9
- RHSA-2025:21981 Released 2025-11-24 · Red Hat rating ImportantRHTAS 1.3.1 - Red Hat Trusted Artifact Signer Release
- Red Hat Trusted Artifact Signer 1.3 registry.redhat.io/rhtas/rekor-cli-rhel9, registry.redhat.io/rhtas/rekor-server-rhel9
- RHSA-2025:21976 Released 2025-11-24 · Red Hat rating ImportantRHTAS 1.3.1 - Red Hat Trusted Artifact Signer Release
- Red Hat Trusted Artifact Signer 1.3 registry.redhat.io/rhtas/fulcio-rhel9
Fixed in the same release
Records fixed by the same vendor advisory or release, as the CNA lists them.
- Release ·
HashiCorp Vault 1.21.0
2 records Highest priority Priority LOW 2 LOW
Other records, highest priority first
- TI-2025-11043 Vault Vulnerable to Denial of Service Due to Rate Limit RegressionPriority LOW 39
Vendor assessments
Red Hat
Red Hat rating: Important. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat OpenShift Container Platform 4 | Affected | No fix planned: Will not fix |
| Red Hat Trusted Artifact Signer | Affected | No fix yet |
| Zero Trust Workload Identity Manager - Tech Preview | Affected | No fix yet |
| Red Hat OpenShift Pipelines 1.2 | Fixed | RHSA-2026:3827 |
| Red Hat Trusted Artifact Signer 1.3 | Fixed | RHSA-2025:21976, RHSA-2025:21981, RHSA-2025:21984, RHSA-2025:21988, RHSA-2025:22058 |
Not affected: 9 products
- Custom Metric Autoscaler operator for Red Hat Openshift
- External Secrets Operator for Red Hat OpenShift
- Red Hat OpenShift Container Platform 4
- Red Hat OpenShift Pipelines 1.2
- Red Hat OpenStack Platform 18.0
- Red Hat Openshift Data Foundation 4
- Red Hat Trusted Artifact Signer 1.3
- cert-manager Operator for Red Hat OpenShift
- external secrets operator for Red Hat OpenShift - Tech Preview
Timeline
- 2026-10-02 Threatist record created from CVE-2025-11621
- 2026-10-03 Alias added: GHSA-9g4h-h484-3578
References
Advisory 2
More HashiCorp Vault vulnerabilities
- TI-2024-01904 Vault Cert Auth Method Did Not Correctly Validate Non-CA Certificates CVSS 3.1CRITICAL 9.8
- TI-2022-19053 An issue was discovered in HashiCorp Vault and Vault Enterprise before 1.11.3. CVSS 3.1CRITICAL 9.1
- TI-2020-17874 The official vault docker images before 0.11.6 contain a blank password for a root user. CVSS 3.1CRITICAL 9.8
- TI-2020-10142 HashiCorp Vault and Vault Enterprise 1.4.0 and 1.4.1, when configured with the GCP… CVSS 3.1CRITICAL 9.8
- TI-2026-04407 Vault Vulnerable to Server-Side Request Forgery in ACME Challenge Validation via Attacker-Controlled DNS CVSS 3.1HIGH 8.6
- TI-2025-05421 Arbitrary Remote Code Execution via Plugin Catalog Abuse CVSS 3.1CRITICAL 9.1
Sources
- CVE-2025-11621 · CVE Program
- CVE-2025-11621 · NVD
- FIRST EPSS
- GHSA-9g4h-h484-3578 · GitHub Advisory Database · CC BY 4.0
- CVE-2025-11621 · Red Hat security data · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences