Improper Restriction of Security Token Assignment Affecting openbao package, versions <2.5.4-r0


Severity

Recommended
0.0
low
0
10

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Threat Intelligence

EPSS
0.3% (22nd percentile)

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  • Snyk IDSNYK-ALPINE323-OPENBAO-16791525
  • published22 May 2026
  • disclosed21 Apr 2026

Introduced: 21 Apr 2026

CVE-2026-40264  (opens in a new tab)
CWE-1259  (opens in a new tab)

How to fix?

Upgrade Alpine:3.23 openbao to version 2.5.4-r0 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream openbao package and not the openbao package as distributed by Alpine. See How to fix? for Alpine:3.23 relevant fixed versions and status.

OpenBao is an open source identity-based secrets management system. OpenBao's namespaces provide multi-tenant separation. Prior to version 2.5.3, a tenant who leaks token accessors can have their token revoked or renewed by a privileged administrator in another tenant. This is addressed in v2.5.3.

CVSS Base Scores

version 3.1