Vault Terraform Provider Applied Incorrect Defaults for LDAP Auth Method
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- Fixed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA and GitHub.
Summary
Vault’s Terraform Provider incorrectly set the default deny_null_bind parameter for the LDAP auth method to false by default, potentially resulting in an insecure configuration. If the underlying LDAP server allowed anonymous or unauthenticated binds, this could result in authentication bypass. This vulnerability, CVE-2025-13357, is fixed in Vault Terraform Provider v5.5.0.
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 | Tooling | 4.2.0 to before 5.5.0 | 5.5.0 | Patch available | CNA |
| — | github.com/hashicorp/terraform-provider-vault (Go) | before 5.5.0 | 5.5.0 | Patch available | GHSA-gmm6-j2g5-r52m |
- Tooling VendorHashiCorp Affected 4.2.0 to before 5.5.0 Fixed in 5.5.0 Patch available CNA
- github.com/hashicorp/terraform-provider-vault (Go) Vendor— Affected before 5.5.0 Fixed in 5.5.0 Patch available GHSA-gmm6-j2g5-r52m
Remediation
- Fix · CNA Tooling (HashiCorp) Fixed in 5.5.0
- Fix · GHSA-gmm6-j2g5-r52m github.com/hashicorp/terraform-provider-vault (Go) Fixed in 5.5.0 Advisory →
Timeline
- 2026-10-02 Threatist record created from CVE-2025-13357
- 2026-10-03 Alias added: GHSA-gmm6-j2g5-r52m
References
Advisory 3
More HashiCorp Terraform Provider vulnerabilities
- TI-2021-10878 HashiCorp Terraform’s Vault Provider (terraform-provider-vault) did not correctly… CVSS 3.1CRITICAL 9.8
Sources
- CVE-2025-13357 · CVE Program
- CVE-2025-13357 · NVD
- FIRST EPSS
- GHSA-gmm6-j2g5-r52m · GitHub Advisory Database · CC BY 4.0
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