CVE-2025-13357: Hashicorp Terraform Provider

Critical severity, CVSS 9.8. EPSS: 0.5% chance of exploitation in the next 30 days.

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.

Affected products

• Hashicorp Terraform Provider: from 4.2.0, before 5.5.0 (fixed in 5.5.0)

Published 2025-11-21. Last modified 2026-10-08.