Medium severity · published Oct 22, 2025
CVE-2025-62705
OpenBao and Vault Leak []byte Fields in Audit Logs
4.9
CVSS
0.3%
EPSS
No
On KEV
Description
OpenBao is an open source identity-based secrets management system. Prior to version 2.4.2, OpenBao's audit log did not appropriately redact fields when relevant subsystems sent []byte response parameters rather than strings. This includes, but is not limited to sys/raw with use of encoding=base64, all data would be emitted unredacted to the audit log, and Transit, when performing a signing operation with a derived Ed25519 key, would emit public keys to the audit log. This issue has been patched in OpenBao 2.4.2.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N
Attack vector
Network
Complexity
Low
Privileges
High
User interaction
None
Confidentiality
High
Integrity
None
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.3% · higher than 26% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
OP
openbao · openbao
< 2.4.2 · source: vendor, NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2025-62705
CVE.org
https://www.cve.org/CVERecord?id=CVE-2025-62705
Patch
https://github.com/openbao/openbao/commit/cc2c476bac66e1d94776c2629793daec3af625f8
Patch
https://github.com/openbao/openbao/security/advisories/GHSA-rc54-2g2c-g36g
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