What is CVE-2023-3462?

CVE-2023-3462 is a medium-severity vulnerability in Hashicorp Vault, classified under Observable Discrepancy. CVSS score: 5.3/10. Published 2023-07-31.

How severe is CVE-2023-3462?

Medium severity. CVSS v3 base score is 5.3 out of 10.

Vulnerability in Hashicorp Vault

CVE-2023-3462

HashiCorp's Vault and Vault Enterprise are vulnerable to user enumeration when using the LDAP auth method. An attacker may submit requests of existent and non-existent LDAP users and observe the response from Vault to check if the account is valid on the LDAP server. This vulnerability is fixed in Vault 1.14.1 and 1.13.5.

Published 2023-07-31 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N.

EPSS exploit prediction

EPSS: 0.006 (47.4th percentile), scored 2026-10-02.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 47th percentile — 47.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.006 · newest: 0.006 · change: 0.000

Affected products

Hashicorp Vault — versions 1.13.0, 1.14.0
Hashicorp Vault Enterprise — versions 1.13.0, 1.14.0

Weakness classification (CWE)

CWE-203 — Observable Discrepancy

References

discuss.hashicorp.com/t/hcsec-2023-24-vaults-ldap-auth-method-allows-for-user-e… (Vendor Advisory)

Frequently asked questions

What is CVE-2023-3462?: CVE-2023-3462 is a medium-severity vulnerability in Hashicorp Vault, classified under Observable Discrepancy. CVSS score: 5.3/10. Published 2023-07-31.
How severe is CVE-2023-3462?: Medium severity. CVSS v3 base score is 5.3 out of 10.