Vulnerability Details CVE-2026-40264
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.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.0
EPSS Ranking 10.5%
CVSS Severity
CVSS v3 Score 2.7
Products affected by CVE-2026-40264
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cpe:2.3:a:openbao:openbao:-
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cpe:2.3:a:openbao:openbao:2.0.0
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cpe:2.3:a:openbao:openbao:2.0.1
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cpe:2.3:a:openbao:openbao:2.0.2
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cpe:2.3:a:openbao:openbao:2.0.3
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cpe:2.3:a:openbao:openbao:2.1.0
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cpe:2.3:a:openbao:openbao:2.1.1
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cpe:2.3:a:openbao:openbao:2.2.0
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cpe:2.3:a:openbao:openbao:2.2.1
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cpe:2.3:a:openbao:openbao:2.2.2
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cpe:2.3:a:openbao:openbao:2.3.0
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cpe:2.3:a:openbao:openbao:2.3.1
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cpe:2.3:a:openbao:openbao:2.3.2
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cpe:2.3:a:openbao:openbao:2.4.0
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cpe:2.3:a:openbao:openbao:2.4.1