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CVE-2025-52893

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Date: June 25, 2025

OpenBao exists to provide a software solution to manage, store, and distribute sensitive data including secrets, certificates, and keys. OpenBao before v2.3.0 may leak sensitive information in logs when processing malformed data. This is separate from the earlier HCSEC-2025-09 / CVE-2025-4166. This issue has been fixed in OpenBao v2.3.0 and later. Like with HCSEC-2025-09, there is no known workaround except to ensure properly formatted requests from all clients.

Severity Score

Related Resources (9)

github.com/openbao/openbao/sdk/v2/framework
https://github.com/go-viper/mapstructure/pull/105
https://github.com/go-viper/mapstructure/releases/tag/v2.3.0
https://nvd.nist.gov/vuln/detail/CVE-2025-52893
https://github.com/openbao/openbao/security/advisories/GHSA-8f5r-8cmq-7fmq
https://github.com/go-viper/mapstructure/commit/ed3f92181528ff776a0324107b8b55026e93766a
https://github.com/openbao/openbao/commit/cf5e920badbf96b41253534a3fd5ff5063bf4b30
https://discuss.hashicorp.com/t/hcsec-2025-09-vault-may-expose-sensitive-information-in-error-logs-when-processing-malformed-data-with-the-kv-v2-plugin/74717
https://www.mend.io/vulnerability-database/CVE-2025-52893

Severity Score

Weakness Type (CWE)

Insertion of Sensitive Information into Log File

CWE-532

Top Fix

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Upgrade Version

Upgrade to version github.com/openbao/openbao - v2.3.0;github.com/openbao/openbao/sdk/v2 - v2.3.0

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CVSS v3.1

Base Score:
Attack Vector (AV): NETWORK
Attack Complexity (AC): LOW
Privileges Required (PR): HIGH
User Interaction (UI): REQUIRED
Scope (S): UNCHANGED
Confidentiality (C): HIGH
Integrity (I): NONE
Availability (A): NONE

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