GHSA-RC54-2G2C-G36G

Vulnerability from github – Published: 2025-10-22 19:55 – Updated: 2025-10-23 17:40
VLAI?
Summary
OpenBao and Vault Leak []byte Fields in Audit Logs
Details

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/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.

Severity ?
5.7 (Medium)
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
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{
  "affected": [
    {
      "package": {
        "ecosystem": "Go",
        "name": "github.com/openbao/openbao"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "0.0.0-20251022165510-cc2c476bac66"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2025-62705"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-532"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2025-10-22T19:55:40Z",
    "nvd_published_at": "2025-10-22T22:15:35Z",
    "severity": "MODERATE"
  },
  "details": "### Impact\n\nOpenBao\u0027s 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:\n\n- `sys/raw` with use of `encoding=base64`, all data would be emitted unredacted to the audit log.\n- Transit, when performing a signing operation with a derived Ed25519 key, would emit public keys to the audit log.\n\nThird-party plugins may be affected.\n\nThis issue has been present since HashiCorp Vault and continues to impact Vault as of v1.20.4. \n\n### Patches\n\nOpenBao v2.4.2 will patch this issue.\n\n### Workarounds\n\nIf 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.",
  "id": "GHSA-rc54-2g2c-g36g",
  "modified": "2025-10-23T17:40:56Z",
  "published": "2025-10-22T19:55:40Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/openbao/openbao/security/advisories/GHSA-rc54-2g2c-g36g"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-62705"
    },
    {
      "type": "WEB",
      "url": "https://github.com/openbao/openbao/commit/cc2c476bac66e1d94776c2629793daec3af625f8"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/openbao/openbao"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "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",
      "type": "CVSS_V4"
    }
  ],
  "summary": "OpenBao and Vault Leak []byte Fields in Audit Logs "
}


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