CVE-2025-62705— OpenBao and Vault Leak []byte Fields in Audit Logs
Quick assessment
Affected
openbao openbao
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.
OpenBao是OpenBao开源的一个敏感数据管理软件。 OpenBao 2.4.2之前版本存在日志信息泄露漏洞，该漏洞源于审计日志未正确编辑字节数组响应参数，可能导致敏感数据泄露。
Possible ATT&CK Techniques 1 AI
T1530 · Data from Cloud Storage
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I. Basic Information for CVE-2025-62705
Vulnerability Information
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Vulnerability Title
OpenBao and Vault Leak []byte Fields in Audit Logs
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:N/AC:L/AT:P/PR:H/UI:P/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N
Source: CVE Program / CVE List V5
Vulnerability Type
通过日志文件的信息暴露
Source: CVE Program / CVE List V5
Vulnerability Title
OpenBao 日志信息泄露漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
OpenBao是OpenBao开源的一个敏感数据管理软件。 OpenBao 2.4.2之前版本存在日志信息泄露漏洞，该漏洞源于审计日志未正确编辑字节数组响应参数，可能导致敏感数据泄露。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
II. Public POCs for CVE-2025-62705
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IV. Related Vulnerabilities
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CVE-2026-63132
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OpenBao: LDAPi ldaputil (wrong escape func)
Same vendor: openbao
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OpenBao LIST ACL bypass: a trailing-slash LIST request skips -
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CVE-2026-71543
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CVE-2026-55770
OpenBao: LDAPi ldaputil (wrong escape func)
Same weakness: CWE-532
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V. Comments for CVE-2025-62705
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