---
id: CVE-2026-63131
title: OpenBao is an open source identity-based secrets management system
summary: >-
  OpenBao is an open source identity-based secrets management system. Prior to
  2.6.0, OpenBao's vault/policy/acl.go could evaluate a broader wildcard ACL
  grant before more-specific trailing-wildcard ACL paths with capabilities =
  ["deny"] f…
severity: medium
cvss: 6
cvssVector: 'CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N'
cwe:
  - CWE-863
vendor: openbao
product: openbao
affected:
  - openbao < 2.6.0
patched:
  - github.com/openbao/openbao 0.0.0-20260713133043-f58d848c139e
published: '2026-09-23'
updated: '2026-09-29'
sourceUpdated: '2026-09-29T19:06:32.333'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-63131'
references:
  - url: 'https://github.com/hashicorp/vault/blob/main/CHANGELOG.md#203'
    label: security-advisories@github.com
  - url: >-
      https://github.com/openbao/openbao/commit/2e9625d6cebe4639d051ef53dd6ce7c49914ae6a
    label: security-advisories@github.com
  - url: >-
      https://github.com/openbao/openbao/commit/f58d848c139e5ba71aa63103fcfe101972b999fc
    label: security-advisories@github.com
  - url: 'https://github.com/openbao/openbao/pull/3389'
    label: security-advisories@github.com
  - url: 'https://github.com/openbao/openbao/pull/3474'
    label: security-advisories@github.com
  - url: 'https://github.com/openbao/openbao/releases/tag/v2.6.0'
    label: security-advisories@github.com
  - url: 'https://github.com/openbao/openbao/security/advisories/GHSA-xp3c-3jw3-4vcr'
    label: security-advisories@github.com
  - url: 'https://github.com/advisories/GHSA-xp3c-3jw3-4vcr'
  - url: 'https://github.com/openbao/openbao'
  - url: >-
      https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-63131.json
  - url: 'https://access.redhat.com/security/cve/CVE-2026-63131'
  - url: 'https://www.cve.org/CVERecord?id=CVE-2026-63131'
tags:
  - nvd
  - cve.org
  - ghsa
  - go
  - osv
  - csaf
  - vex
  - red-hat
epss: 0.00484
epssPercentile: 0.41473
aliases:
  - GHSA-xp3c-3jw3-4vcr
  - BIT-openbao-2026-63131
  - GO-2026-6579
ecosystem: go
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: partial
  timestamp: '2026-09-24T14:14:55.010515Z'
cvssSource: cna
scores:
  cna: 6
  vendor: 4.3
ingestedAt: '2026-09-22T21:11:40.316Z'
---

## Overview

OpenBao is an open source identity-based secrets management system. Prior to 2.6.0, OpenBao's vault/policy/acl.go could evaluate a broader wildcard ACL grant before more-specific trailing-wildcard ACL paths with capabilities = ["deny"] for a LIST operation. When a parent path permitted LIST and a child path was denied, the trailing-slash lookup could therefore allow listing the denied path. Other operation types are outside the repository advisory's affected scope. This issue is fixed in version 2.6.0.

## Remediation

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

## Package advisory (CVE-2026-63131)

Affected packages:

- `github.com/openbao/openbao < 0.0.0-20260713133043-f58d848c139e`
- `github.com/openbao/openbao >= 0.1.0, <= 1.1.5`

Patched in:

- `github.com/openbao/openbao 0.0.0-20260713133043-f58d848c139e`

Source: https://github.com/advisories/GHSA-xp3c-3jw3-4vcr

## Vendor advisories

- **Red Hat VEX** · updated 2026-09-23 · [vex](https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-63131.json)