CVE-2026-40264

LOW

OpenBao's Token Store Allows Cross-Namespace Renewal, Revocation

Title source: cna

Description

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.

References (1)

[X_Refsource_Confirm] https://github.com/openbao/openbao/security/advisories/GHSA-p49j-v9wc-wg57

Scores

CVSS v4 2.0

EPSS 0.0004

EPSS Percentile 10.6%

CVSS:4.0/AV:N/AC:L/AT:P/PR:H/UI:P/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N

Details

CWE

CWE-1259

Status published

Products (2)

openbao/openbao 0 - 0.0.0-20260420162526-f58111d2ca54Go

openbao/openbao < 2.5.3

Published Apr 21, 2026

Tracked Since Apr 21, 2026