CVE-2025-62705 OpenBao and Vault Leak []byte Fields in Audit Logs

What is CVE-2025-62705?

CVE-2025-62705 is a medium-severity vulnerability in openbao, published on 22 Oct 2025. An attacker needs administrator access to exploit it, and only if a user opens a file or follows a link.

Official 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.

Weakness: CWE-532

Which versions are affected by CVE-2025-62705?

4 open source packages ship an affected version, including github.com/openbao/openbao and openbao. It affects 1 product.

Products include Openbao Openbao.

How do I fix CVE-2025-62705?

Upgrade github.com/openbao/openbao to 0.0.0-20251022165510-cc2c476bac66 or later.

Is CVE-2025-62705 being exploited?

There is no known exploitation of CVE-2025-62705 in the wild and no public exploit code.

Other vulnerabilities in openbao

• CVE-2026-33757 OpenBao lacks user confirmation for OIDC direct callback mode Critical 9.6
• CVE-2026-33758 OpenBao has Reflected XSS in its OIDC authentication error message Critical 9.4
• CVE-2025-54997 OpenBao: Privileged Operator May Execute Code on the Underlying Host Critical 9.1
• CVE-2025-64761 OpenBao Privileged Operator Identity Group Root Escalation High 7.5
• CVE-2025-59043 OpenBao vulnerable to denial of service via malicious JSON request processing High 7.5

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as BIT-openbao-2025-62705, GHSA-rc54-2g2c-g36g, GO-2025-4052.