CVE-2025-52893

OpenBao May Leak Sensitive Information in Logs When Processing Malformed Data

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.

Category

4.5
CVSS
Severity: Medium
CVSS 3.1 •
EPSS 0.02%
Affected: openbao openbao
Published at:
Updated at:

References

Link Tags
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

Frequently Asked Questions

What is the severity of CVE-2025-52893?
CVE-2025-52893 has been scored as a medium severity vulnerability.
How to fix CVE-2025-52893?
To fix CVE-2025-52893, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2025-52893 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2025-52893 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2025-52893?
CVE-2025-52893 affects openbao openbao.
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