CVE-2025-52893

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.

• CWE-532

• 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/74717Not Applicable
• https://github.com/go-viper/mapstructure/commit/ed3f92181528ff776a0324107b8b55026e93766aNot Applicable
• https://github.com/go-viper/mapstructure/pull/105Not Applicable
• https://github.com/go-viper/mapstructure/releases/tag/v2.3.0Not Applicable
• https://github.com/openbao/openbao/commit/cf5e920badbf96b41253534a3fd5ff5063bf4b30Patch
• https://github.com/openbao/openbao/security/advisories/GHSA-8f5r-8cmq-7fmqVendor Advisory

Published

Jun 25, 2025

Last Modified

Jun 17, 2026

Status

Analyzed

• How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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