OpenBao May Leak Sensitive Information in Logs When Processing Malformed Data
Vulnerability Description
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.
Impact Analysis
Refer to official advisory for detailed impact metrics.
Remediation
Ensure systems are updated to the latest vendor-supplied patch levels.
Am I Vulnerable?
Launch our assessment wizard to check if your infrastructure is exposed to • CVE-2025-52893
Credits & Attribution
No credits recorded in the NVD database.
References
- https://github.com/openbao/openbao/security/advisories/GHSA-8f5r-8cmq-7fmq
- https://github.com/go-viper/mapstructure/pull/105
- 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://github.com/go-viper/mapstructure/releases/tag/v2.3.0
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