Bug 2459959 (CVE-2026-40264)

Summary: CVE-2026-40264 OpenBao: OpenBao: Unauthorized token management by privileged administrator
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerabilityAssignee: Product Security DevOps Team <prodsec-dev>
Status: NEW --- QA Contact:
Severity: medium Docs Contact:
Priority: medium    
Version: unspecifiedKeywords: Security
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Hardware: All   
OS: Linux   
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A flaw was found in OpenBao. OpenBao's multi-tenant separation feature allows a privileged administrator in one tenant to revoke or renew a token belonging to another tenant if that token's accessors are leaked. This unauthorized token management could lead to a denial of service for the affected tenant's tokens.
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oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
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Bug Depends On: 2460060, 2460061    
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Description OSIDB Bzimport 2026-04-21 02:02:21 UTC
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.