---
id: CVE-2026-115365
title: >-
  OpenBao 2.3.0 before 2.6.3 Incorrect Authorization via Policy Cache Namespace
  Traversal
summary: >-
  OpenBao from 2.3.0 before 2.6.3 contains an incorrect authorization
  vulnerability in its ACL policy cache that allows tokens to reference policies
  from arbitrary namespaces using specially crafted policy names. Attackers
  holding such tok…
severity: medium
cvss: 6.6
cvssVector: 'CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H'
cvssSource: cna
cwe:
  - CWE-863
vendor: openbao
product: openbao
affected:
  - openbao >= 2.3.0 < 2.6.3
published: '2026-10-22'
updated: '2026-10-22'
sourceUpdated: '2026-10-22T19:13:39.017Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2026-115365'
references:
  - url: 'https://github.com/openbao/openbao/security/advisories/GHSA-mjch-vcw3-hhmf'
    label: GitHub Security Advisory (GHSA-mjch-vcw3-hhmf)
  - url: >-
      https://www.vulncheck.com/advisories/openbao-2.3.0-before-2.6.3-incorrect-authorization-via-policy-cache-namespace-traversal
    label: >-
      VulnCheck Advisory: OpenBao 2.3.0 before 2.6.3 Incorrect Authorization via
      Policy Cache Namespace Traversal
tags:
  - cve.org
ingestedAt: '2026-10-22T22:00:50.400Z'
---

## Overview

OpenBao from 2.3.0 before 2.6.3 contains an incorrect authorization vulnerability in its ACL policy cache that allows tokens to reference policies from arbitrary namespaces using specially crafted policy names. Attackers holding such tokens can gain capabilities of cached policies in other namespaces, including the root namespace, to act across namespace boundaries.

## Affected

- `openbao >= 2.3.0 < 2.6.3`

## Remediation

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