CVE-2025-3879

Vault’s Azure Authentication Method bound_location Restriction Could be Bypassed on Login

Description

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.

Category

6.6
CVSS
Severity: Medium
CVSS 3.1 •
EPSS 0.05%
Affected: HashiCorp Vault
Affected: HashiCorp Vault Enterprise
Published at:
Updated at:

References

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

Frequently Asked Questions

What is the severity of CVE-2025-3879?
CVE-2025-3879 has been scored as a medium severity vulnerability.
How to fix CVE-2025-3879?
To fix CVE-2025-3879, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2025-3879 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2025-3879 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2025-3879?
CVE-2025-3879 affects HashiCorp Vault, HashiCorp Vault Enterprise.
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