CVE-2025-3879
MEDIUMCVSS Vector
CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H
Lifecycle Timeline
3Description
Vault Community, Vault Enterprise (“Vault”) Azure Auth method did not correctly validate the claims in the Azure-issued token, resulting in the potential bypass of the bound_locations parameter on login. Fixed in Vault Community Edition 1.19.1 and Vault Enterprise 1.19.1, 1.18.7, 1.17.14, 1.16.18.
Analysis
Vault Community, Vault Enterprise (“Vault”) Azure Auth method did not correctly validate the claims in the Azure-issued token, resulting in the potential bypass of the bound_locations parameter on. Rated medium severity (CVSS 6.6), this vulnerability is remotely exploitable. No vendor patch available.
Technical Context
This vulnerability is classified as Incorrect Authorization (CWE-863), which allows attackers to bypass authorization checks to access restricted resources. Vault Community, Vault Enterprise (“Vault”) Azure Auth method did not correctly validate the claims in the Azure-issued token, resulting in the potential bypass of the bound_locations parameter on login. Fixed in Vault Community Edition 1.19.1 and Vault Enterprise 1.19.1, 1.18.7, 1.17.14, 1.16.18. Affected products include: Hashicorp Vault.
Affected Products
Hashicorp Vault.
Remediation
No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Review and test authorization logic, implement consistent access control checks, use centralized authorization framework.
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External POC / Exploit Code
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