CVE-2026-4525

Published: Apr 17, 2026 Last Modified: Apr 17, 2026
ExploitDB:
Other exploit source:
Google Dorks:
HIGH 7,5
Source: [email protected]
Attack Vector: network
Attack Complexity: high
Privileges Required: low
User Interaction: none
Scope: unchanged
Confidentiality: high
Integrity: high
Availability: high

Description

AI Translation Available

If a Vault auth mount is configured to pass through the 'Authorization' header, and the 'Authorization' header is used to authenticate to Vault, Vault forwarded the Vault token to the auth plugin backend. Fixed in 2.0.0, 1.21.5, 1.20.10, and 1.19.16.

201

Insertion of Sensitive Information Into Sent Data

Draft
Abstraction: Base Structure: Simple
Common Consequences
Security Scopes Affected:
Confidentiality
Potential Impacts:
Read Files Or Directories Read Memory Read Application Data
Applicable Platforms
All platforms may be affected
View CWE Details
https://discuss.hashicorp.com/t/hcsec-2026-07-vault-may-exp…
https://discuss.hashicorp.com/t/hcsec-2026-07-vault-may-expose-tokens-to-auth-p…