Information disclosure in Openbao

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.

EPSS: 0.003 (19.7th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 4.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:H/I:N/A:N.

Affected products

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2025-52893?
CVE-2025-52893 is a medium-severity vulnerability in Openbao, classified under Insertion of Sensitive Information into Log File. CVSS score: 4.5/10. Published 2025-06-25.
How severe is CVE-2025-52893?
Medium severity. CVSS v3 base score is 4.5 out of 10.