CVE-2025-52893
OpenBao before v2.3.0 may leak sensitive information in logs when processing malformed data.
Does this matter?
Lower severity and a low EPSS score (0.29%). Track it; it rarely justifies an emergency change on its own.
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.
- CVSS 3.1
- 4.5 MEDIUMCVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:H/I:N/A:N
- EPSS
- 0.29% probability · 21th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-532
- Affected
- openbao/openbao
- Source
- security-advisories@github.com
References
- 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/74717Not Applicable
- https://github.com/go-viper/mapstructure/commit/ed3f92181528ff776a0324107b8b55026e93766aNot Applicable
- https://github.com/go-viper/mapstructure/pull/105Not Applicable
- https://github.com/go-viper/mapstructure/releases/tag/v2.3.0Not Applicable
- https://github.com/openbao/openbao/commit/cf5e920badbf96b41253534a3fd5ff5063bf4b30Patch
- https://github.com/openbao/openbao/security/advisories/GHSA-8f5r-8cmq-7fmqVendor Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.