Main Vulnerability Database Vulnerabilities #VU108658

Improper authentication in Vault Enterprise and Vault - CVE-2025-3879

Published: May 5, 2025

Vulnerability identifier: #VU108658

CSH Severity: Low

CVSS v4: 2.3 [CVSS:4.0/AV:N/AC:H/AT:N/PR:L/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N]

CVE-ID: CVE-2025-3879

CWE-ID: CWE-287

Exploitation vector: Remote access

Exploit availability: No public exploit available

Vulnerability details

The vulnerability allows a remote user to bypass authentication process.

The vulnerability exists due to an error in Azure Auth method that does not correctly validate the claims in the Azure-issued token. A remote user can bypass of the bound_locations parameter during login.

Affected software

Vault Enterprise
Vault

How to mitigate CVE-2025-3879

Install updates from vendor's website.

Vault Enterprise - addressed in versions 1.16.18, 1.17.14, 1.18.7, 1.19.1
Vault - update to 1.19.1

External References

https://discuss.hashicorp.com/t/hcsec-2025-07-vault-s-azure-authentication-method-bound-location-restriction-could-be-bypassed-on-login/74716

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