What is CVE-2024-2048?

CVE-2024-2048 is a high-severity vulnerability in Hashicorp Vault, classified under Improper Certificate Validation. CVSS score: 8.1/10. Published 2024-03-04.

How severe is CVE-2024-2048?

High severity. CVSS v3 base score is 8.1 out of 10.

Vulnerability in Hashicorp Vault

CVE-2024-2048

Vault and Vault Enterprise (“Vault”) TLS certificate auth method did not correctly validate client certificates when configured with a non-CA certificate as trusted certificate. In this configuration, an attacker may be able to craft a malicious certificate that could be used to bypass authentication. Fixed in Vault 1.15.5 and 1.14.10.

Vulnerability class: Improper Certificate Validation

Published 2024-03-04 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 8.1 (High). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.004 (36.4th percentile), scored 2026-09-29.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 36th percentile — 36.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.004 · newest: 0.004 · change: 0.000

Affected products

Hashicorp Vault — versions 1.15.5
Hashicorp Vault Enterprise — versions 1.15.5
Openbao

Weakness classification (CWE)

CWE-295 — Improper Certificate Validation

References

discuss.hashicorp.com/t/hcsec-2024-05-vault-cert-auth-method-did-not-correctly-… (Vendor Advisory)
security.netapp.com/advisory/ntap-20240524-0009/ (Third Party Advisory)

Frequently asked questions

What is CVE-2024-2048?: CVE-2024-2048 is a high-severity vulnerability in Hashicorp Vault, classified under Improper Certificate Validation. CVSS score: 8.1/10. Published 2024-03-04.
How severe is CVE-2024-2048?: High severity. CVSS v3 base score is 8.1 out of 10.