CVE-2025-52893: Openbao

Medium severity, CVSS 4.5. EPSS: 0.3% chance of exploitation in the next 30 days.

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.

Affected products

• Openbao Openbao: before 2.3.0 (fixed in 2.3.0)

Published 2025-06-25. Last modified 2026-06-17.