---
id: CVE-2026-115358
title: OpenBao before 2.6.3 Sensitive Data Leak in Audit Log via Malformed Parameters
summary: >-
  OpenBao before 2.6.3 contains an information disclosure vulnerability that
  allows attackers to leak sensitive data into audit logs by sending malformed
  plugin parameters. Attackers can submit requests with malformed TypeKVPair or
  TypeHea…
severity: low
cvss: 2
cvssVector: 'CVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:U/C:L/I:N/A:N'
cvssSource: cna
cwe:
  - CWE-532
vendor: openbao
product: openbao
affected:
  - openbao < 2.6.3
  - github.com/openbao/openbao/sdk/v2 < 2.6.3
  - github.com/openbao/openbao/sdk/v2 >= 2.7.0 < 2.7.1
published: '2026-10-22'
updated: '2026-10-22'
sourceUpdated: '2026-10-22T19:13:34.006Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2026-115358'
references:
  - url: 'https://github.com/openbao/openbao/security/advisories/GHSA-8xxq-mq9m-xmhw'
    label: GitHub Security Advisory (GHSA-8xxq-mq9m-xmhw)
  - url: >-
      https://www.vulncheck.com/advisories/openbao-before-2.6.3-sensitive-data-leak-in-audit-log-via-malformed-parameters
    label: >-
      VulnCheck Advisory: OpenBao before 2.6.3 Sensitive Data Leak in Audit Log
      via Malformed Parameters
tags:
  - cve.org
ingestedAt: '2026-10-22T22:00:50.398Z'
---

## Overview

OpenBao before 2.6.3 contains an information disclosure vulnerability that allows attackers to leak sensitive data into audit logs by sending malformed plugin parameters. Attackers can submit requests with malformed TypeKVPair or TypeHeader field values, causing error messages containing sensitive input to be recorded in audit logs.

## Affected

- `openbao < 2.6.3`
- `github.com/openbao/openbao/sdk/v2 < 2.6.3`
- `github.com/openbao/openbao/sdk/v2 >= 2.7.0 < 2.7.1`

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.