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.
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Fixes

Solution

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Workaround

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History

Fri, 23 Oct 2026 00:45:00 +0000

Type Values Removed Values Added
Description 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.
Title OpenBao 2.3.0 before 2.6.3 Incorrect Authorization via Policy Cache Namespace Traversal
First Time appeared Openbao
Openbao openbao
Weaknesses CWE-863
CPEs cpe:2.3:a:openbao:openbao:*:*:*:*:*:*:*:*
Vendors & Products Openbao
Openbao openbao
References
Metrics cvssV3_1

{'score': 6.6, 'vector': 'CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H'}

cvssV4_0

{'score': 7.5, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:P/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N'}


Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: VulnCheck

Published:

Updated: 2026-10-22T19:13:39.017Z

Reserved: 2026-10-22T11:21:20.779Z

Link: CVE-2026-115365

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-10-22T19:17:42.953

Modified: 2026-10-22T19:17:42.953

Link: CVE-2026-115365

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-10-23T05:15:13Z

Weaknesses