CVE-2024-2048 Vault Cert Auth Method Did Not Correctly Validate Non-CA Certificates

What is CVE-2024-2048?

CVE-2024-2048 is a high-severity authentication bypass vulnerability in Hashicorp Vault, published on 4 Mar 2024. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

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.

Weakness: CWE-295

Which versions are affected by CVE-2024-2048?

6 open source packages ship an affected version, including github.com/hashicorp/vault and vault. It affects 2 products.

Products include Hashicorp Vault, Openbao Openbao.

How do I fix CVE-2024-2048?

Upgrade github.com/hashicorp/vault to a fixed version for your release line: 1.14.10 or 1.15.5.

Upgrade, and rotate credentials and sessions that may have been exposed. More about Authentication bypass.

Is CVE-2024-2048 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2024-2048 exists.

Other vulnerabilities in Hashicorp Vault

• CVE-2020-35192 Hardcoded credentials in n/a Critical 9.8
• CVE-2020-12757 Improper Input Validation in HashiCorp Vault Critical 9.8
• CVE-2025-6000 Arbitrary Remote Code Execution via Plugin Catalog Abuse Critical 9.1
• CVE-2022-40186 HashiCorp Vault vulnerable to incorrect metadata access Critical 9.1
• CVE-2022-36129 Missing authorization in n/a Critical 9.1

All Hashicorp Vault vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as BIT-vault-2024-2048, GHSA-r3w7-mfpm-c2vw, GO-2024-2617.