---
id: CVE-2025-62705
aliases:
  - GHSA-rc54-2g2c-g36g
  - BIT-openbao-2025-62705
  - GO-2025-4052
title: 'OpenBao and Vault Leak []byte Fields in Audit Logs '
summary: 'OpenBao and Vault Leak []byte Fields in Audit Logs '
severity: medium
vendor: openbao
product: github.com/openbao/openbao
ecosystem: go
affected:
  - github.com/openbao/openbao < 0.0.0-20251022165510-cc2c476bac66
patched:
  - github.com/openbao/openbao 0.0.0-20251022165510-cc2c476bac66
published: '2025-10-22'
updated: '2026-07-27'
source: OSV
sourceUrl: 'https://osv.dev/vulnerability/GHSA-rc54-2g2c-g36g'
references:
  - url: 'https://github.com/openbao/openbao/security/advisories/GHSA-rc54-2g2c-g36g'
  - url: 'https://nvd.nist.gov/vuln/detail/CVE-2025-62705'
  - url: >-
      https://github.com/openbao/openbao/commit/cc2c476bac66e1d94776c2629793daec3af625f8
  - url: 'https://github.com/openbao/openbao'
tags:
  - osv
  - go
epss: 0.00331
epssPercentile: 0.2359
ingestedAt: '2026-07-27T19:08:55.058Z'
---

## Overview

### Impact

OpenBao's audit log did not appropriately redact fields when relevant subsystems sent `[]byte` response parameters rather than `string`s. This includes, but is not limited to:

- `sys/raw` with use of `encoding=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. 

### Patches

OpenBao v2.4.2 will patch this issue.

### 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.

## Affected packages

- `github.com/openbao/openbao < 0.0.0-20251022165510-cc2c476bac66`

## Remediation

Upgrade to a patched release:

- `github.com/openbao/openbao 0.0.0-20251022165510-cc2c476bac66`