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CVE-2025-13357

35
FAUCET Score

CVE-2025-13357 is a critical vulnerability affecting the Vault Terraform Provider, specifically its LDAP authentication method. It arises from an incorrect default setting of the deny_null_bind parameter, which could lead to authentication bypass if the LDAP server permits anonymous or unauthenticated binds. With a CVSS score of 9.8 (CRITICAL), this vulnerability has a network attack vector, low attack complexity, and high impacts on confidentiality, integrity, and availability. While there is no evidence of active exploitation, public exploit code, or KEV listing, the vulnerability has garnered significant community discussion, indicating awareness and potential future interest.

Impacted Technologies

VendorProductVersion(s)CPE
>= 4.2.0, < 5.5.0CPE matchmatch criteria
cpe:2.3:a:hashicorp:terraform_provider:*:*:*:*:*:vault:*:*

CVSS Data

CVSS version used by this source: 3.1

7.4HIGH

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N

Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
NONE
Exploitability Score
2.2
Impact Score
5.2
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.54%
Probability of exploitation in next 30 days
EPSS Percentile
42.1%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0054 is in the 21st percentile among its peer group of 36,862 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (1)

gopatch availablevia ghsa
Product: github.com/hashicorp/terraform-provider-vaultFixed in: 5.5.0

Vendor Advisories (1)

goGHSA-gmm6-j2g5-r52mhigh

Vault’s Terraform Provider incorrectly set default deny_null_bind parameter for LDAP auth method to false by default

Nov 21, 2025

References

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