CVE-2025-52893 OpenBao May Leak Sensitive Information in Logs When Processing Malformed Data

What is CVE-2025-52893?

CVE-2025-52893 is a medium-severity vulnerability in openbao, published on 25 Jun 2025.

Official 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.

Weakness: CWE-532

Which versions are affected by CVE-2025-52893?

5 open source packages ship an affected version, including github.com/openbao/openbao/sdk/v2, openbao and github.com/openbao/openbao/sdk. It affects 1 product.

Products include Openbao Openbao.

How do I fix CVE-2025-52893?

Upgrade github.com/openbao/openbao/sdk/v2 to 2.3.0 or later.

Is CVE-2025-52893 being exploited?

There is no known exploitation of CVE-2025-52893 in the wild and no public exploit code.

Other vulnerabilities in openbao

• CVE-2026-33757 OpenBao lacks user confirmation for OIDC direct callback mode Critical 9.6
• CVE-2026-33758 OpenBao has Reflected XSS in its OIDC authentication error message Critical 9.4
• CVE-2025-54997 OpenBao: Privileged Operator May Execute Code on the Underlying Host Critical 9.1
• CVE-2025-64761 OpenBao Privileged Operator Identity Group Root Escalation High 7.5
• CVE-2025-59043 OpenBao vulnerable to denial of service via malicious JSON request processing High 7.5

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as BIT-openbao-2025-52893, CLEANSTART-2026-WB07116, GHSA-8f5r-8cmq-7fmq, GO-2025-3780, UBUNTU-CVE-2025-52893.