Bug 2363669 (CVE-2025-4166)

Summary: CVE-2025-4166 vault: Vault May Include Sensitive Data in Error Logs When Using the KV v2 Plugin
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerabilityAssignee: Product Security DevOps Team <prodsec-dev>
Status: NEW --- QA Contact:
Severity: medium Docs Contact:
Priority: medium    
Version: unspecifiedCC: manissin
Target Milestone: ---Keywords: Security
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Hardware: All   
OS: Linux   
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A flaw was found in the Hashicorp Vault component. Vault Community and Vault Enterprise Key/Value (kv) Version 2 plugin may unintentionally expose sensitive information in server and audit logs when users submit malformed payloads during secret creation or update operations via the Vault REST API. When creating or updating secrets using the KV v2 plugin through the REST API, Vault inadvertently logged the value of the secret when an error occurred in the server logs and audit logs. The inadvertent logging only affected operations if a payload was sent incorrectly, such as improperly formatted JSON. Normal operations through the UI or CLI are unaffected.
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Description OSIDB Bzimport 2025-05-02 15:01:15 UTC
Vault Community and Vault Enterprise Key/Value (kv) Version 2 plugin may unintentionally expose sensitive information in server and audit logs when users submit malformed payloads during secret creation or update operations via the Vault REST API. This vulnerability, identified as CVE-2025-4166, is fixed in Vault Community 1.19.3 and Vault Enterprise 1.19.3, 1.18.9, 1.17.16, 1.16.20.