Vulnerability · Published Nov 21, 2025 · Assigned by HashiCorp

CVE-2025-13357Vault Terraform Provider Applied Incorrect Defaults for LDAP Auth Method

High 7.4

In plain English

A high-severity security flaw in Tooling from HashiCorp. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.5% (higher than 45% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 3.1)7.4High

Exploit odds (30 days)0.5%top 54.9% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official description

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 packages & fixed versions

Ecosystem	Package	Fixed in	Advisory
Go	github.com/hashicorp/terraform-provider-vault	5.5.0	GHSA-gmm6-j2g5-r52m
Go	github.com/hashicorp/terraform-provider-vault	no fix listed	GO-2025-4152

Affected products (as reported)

Vendor	Product	Versions
HashiCorp	Tooling	4.2.0 – before 5.5.0

Weakness: CWE-1188 · Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N

References

https://discuss.hashicorp.com/t/hcsec-2025-33-vault-terraform-provider-applied-incorrect-defaults-for-ldap-auth-method/76822