Summary
OpenBao and Vault Leak []byte Fields in Audit Logs
Workarounds
If users do not use the above functionality, they are not impacted. To prohibit the use of sys/raw globally, ensure raw_storage_endpoint=false is set or missing from the server configuration.
Impact
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/rawwith use ofencoding=base64, all data would be emitted unredacted to the audit log.- Transit, when performing a signing operation with a derived Ed25519 key, would emit public keys to the audit log.
Third-party plugins may be affected.
This issue has been present since HashiCorp Vault and continues to impact Vault as of v1.20.4.
Affected versions
Security releases
Kodem intelligence
Severity tells you how bad this could be in the worst case. It does not tell you whether you are exposed. Exploitability and impact are functions of runtime truth: whether the vulnerable code is present, reachable, and actually executes in your application. A vulnerable package can sit in your dependency tree and never run.
Kodem, an Intelligent Application Security platform, uses runtime intelligence to reveal which vulnerabilities actually execute in production, so teams prioritize the ones that genuinely matter. Kodem's runtime-powered SCA identifies whether this CVE is reachable in your applications.
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OpenBao v2.4.2 will patch this issue.
Frequently Asked Questions
- What is CVE-2025-62705? CVE-2025-62705 is a medium-severity security vulnerability in github.com/openbao/openbao (go), affecting versions < 0.0.0-20251022165510-cc2c476bac66. It is fixed in 0.0.0-20251022165510-cc2c476bac66.
- Which versions of github.com/openbao/openbao are affected by CVE-2025-62705? github.com/openbao/openbao (go) versions < 0.0.0-20251022165510-cc2c476bac66 is affected.
- Is there a fix for CVE-2025-62705? Yes. CVE-2025-62705 is fixed in 0.0.0-20251022165510-cc2c476bac66. Upgrade to this version or later.
- Is CVE-2025-62705 exploitable, and should I be worried? Whether CVE-2025-62705 is exploitable in your environment depends on whether the vulnerable code is present and reachable. A CVSS score is a worst-case rating; it does not account for your specific deployment, configuration, or usage patterns. Kodem, an Intelligent Application Security platform, uses runtime intelligence to show which vulnerabilities actually execute in production, so you can focus on the ones that represent real risk. Get a demo
- What actually determines whether CVE-2025-62705 is exploitable, and how bad it is? Exploitability and impact are not fixed properties of a CVE. They depend on runtime truth: whether the vulnerable code is present, reachable, and actually executes in your application. A high CVSS score on a dependency that never runs is not the same as real risk. Kodem, an Intelligent Application Security platform, uses runtime intelligence to reveal which vulnerabilities actually execute in production, so teams prioritize the ones that genuinely matter.
- How do I fix CVE-2025-62705? Upgrade
github.com/openbao/openbaoto 0.0.0-20251022165510-cc2c476bac66 or later.