CVE-2025-52893
MEDIUMOpenBao < 2.3.0 - Sensitive Information Exposure in Error Logs via Malformed Data Processing
Title source: llmDescription
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.
References (6)
Core 6
Core References
Vendor Advisory x_refsource_confirm
https://github.com/openbao/openbao/security/advisories/GHSA-8f5r-8cmq-7fmq
Not Applicable x_refsource_misc
https://github.com/go-viper/mapstructure/pull/105
Not Applicable x_refsource_misc
https://github.com/go-viper/mapstructure/commit/ed3f92181528ff776a0324107b8b55026e93766a
Patch x_refsource_misc
https://github.com/openbao/openbao/commit/cf5e920badbf96b41253534a3fd5ff5063bf4b30
Not Applicable x_refsource_misc
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
Not Applicable x_refsource_misc
https://github.com/go-viper/mapstructure/releases/tag/v2.3.0
Scores
CVSS v3
4.5
EPSS
0.0027
EPSS Percentile
19.0%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:H/I:N/A:N
CISA SSVC
Vulnrichment
Exploitation
none
Automatable
no
Technical Impact
partial
Details
CWE
CWE-532
Status
published
Products (2)
openbao/openbao
< 2.3.0
openbao/openbao
0 - 2.3.0Go
Published
Jun 25, 2025
Tracked Since
Feb 18, 2026