CVE-2023-3462 | Vault's LDAP Auth Method Allows for User Enumeration

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 update: 2026-06-17 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2023-3462 is rated Low Risk (36.4/100): CVSS Medium severity, with low exploitation likelihood (EPSS 0.61%). Monitor for updates and reassess as exploit intelligence or EPSS changes.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2023-3462

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-06-15 1.01% 0.61% -0.39%
2 2026-03-04 0.37% 1.01% +0.64%
3 2026-03-01 — 0.37% —

Full EPSS history (44 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2023-3462

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
5.3 3.1 MEDIUM
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:L)
Some sensitive info could get out, but not a total data dump.
Integrity (I:N)
Data isn’t meaningfully altered or forged.
Availability (A:N)
Service keeps running; no real outage angle.
 3.9 1.4 [email protected]
5.3 3.1 MEDIUM
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:L)
Some sensitive info could get out, but not a total data dump.
Integrity (I:N)
Data isn’t meaningfully altered or forged.
Availability (A:N)
Service keeps running; no real outage angle.
 3.9 1.4 [email protected]

Weakness enumeration for CVE-2023-3462

GitHub Security Advisory for CVE-2023-3462

GHSA-9v3w-w2jh-4hff · Severity: medium · Ecosystem: go — HashiCorp Vault and Vault Enterprise vulnerable to user enumeration

OS Trackers for CVE-2023-3462

vendor priority summary link
alpine medium CVE-2023-3462: 1 source package rows (vault); 2 state rows across 1 repos (edge-community); fixed 1, open 1. https://security.alpinelinux.org/vuln/CVE-2023-3462
redhat medium — https://access.redhat.com/security/cve/CVE-2023-3462

Affected software / configurations for CVE-2023-3462

Vendor Product Version Raw CPE
hashicorp vault >= 1.13.0, < 1.13.5 cpe:2.3:a:hashicorp:vault:*:*:*:*:-:*:*:*
hashicorp vault >= 1.13.0, < 1.13.5 cpe:2.3:a:hashicorp:vault:*:*:*:*:enterprise:*:*:*
hashicorp vault 1.14.0 cpe:2.3:a:hashicorp:vault:1.14.0:*:*:*:-:*:*:*
hashicorp vault 1.14.0 cpe:2.3:a:hashicorp:vault:1.14.0:*:*:*:enterprise:*:*:*

References for CVE-2023-3462

cvelogic Threat Intelligence