Bug 2559317 (CVE-2026-115366)

Summary: CVE-2026-115366 github.com/openbao/openbao: OpenBao: Denial of Service via improper authorization in plugin catalog API
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. An improper authorization vulnerability in the plugin catalog interface allows an authenticated user with privileged access in a child namespace to modify system-wide plugin configurations. Because access to these endpoints is not restricted to the root namespace, an attacker can delete, invalidate, or manipulate plugin registrations, leading to a Denial of Service (DoS).
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Description OSIDB Bzimport 2026-10-22 20:29:13 UTC 
OpenBao from 2.3.0 before 2.6.3 contains an improper authorization vulnerability that allows privileged child-namespace tokens to modify plugin registrations because /v1/sys/plugins/catalog/* is not restricted to the root namespace. Attackers can remove existing registrations, create invalid ones, or register installed plugins through a child namespace's sys/ mount, causing denial of service.