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CVE-2025-3879

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

HIGH
8.8
CVSS Score
Published: May 2, 2025 at 04:15 PM UTC
Updated: June 17, 2026 at 09:20 AM UTC
1 product affected across 1 vendorVault

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Severity
HIGH8.8
Exploit prediction
EPSS 0.4%
SSVC
No known exploit

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Vault· Hashicorp
95%
0.10.0 ≤ v < 1.16.180.10.0 ≤ v < 1.19.11.17.0 ≤ v < 1.17.141.18.0 ≤ v < 1.18.70.10.01.19.0
Affected range stops below 1.16.18, so it looks safe — our inference, not a vendor statement
Affected range stops below 1.17.14, so it looks safe — our inference, not a vendor statement
Affected range stops below 1.18.7, so it looks safe — our inference, not a vendor statement
Affected range stops below 1.19.1, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

References (1)

Vendor Advisory
Source: [email protected]
https://discuss.hashicorp.com/t/hcsec-2025-07-vault-s-azure-authentication-method-bound-location-restriction-could-be-bypassed-on-login/74716

SSVC — Action Prioritization

SSVCNo known exploitNot automatableTotal impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

8.8HIGH[email protected]
Attack Vector
NETWORK
Complexity
LOW
Privileges
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Vector?

Quick Info

StatusANALYZED
CWE
CWE-863

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