CVE-2026-115366 Details
Description
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.
An improper authorization vulnerability has been identified in OpenBao versions 2.3.0 prior to 2.6.3. This vulnerability allows privileged child-namespace tokens to modify plugin registrations because the plugin catalog API is not restricted to the root namespace. As a result, attackers can remove existing plugin registrations, create invalid ones, or register plugins through a child namespace's system mount, leading to denial-of-service conditions.
This vulnerability has been patched in OpenBao versions 2.6.3 and 2.7.0. Users can also ensure that tenants without control over the plugin catalog are not granted write or delete capabilities on the plugin catalog within their namespaces. Alternatively, external plugins can be disabled by not configuring a plugin directory.
Metrics
CVSS 4.0 Severity and Vector Strings:
VolerionCVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
Volerion
Assessed Oct 22, 2026CISA-ADP
Assessed Oct 26, 2026References to Advisories, Solutions, and Tools
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Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-863 | Incorrect Authorization | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| OpenBao | >= 2.3.0, < 2.6.3 (semver) |
CPE
Remediation
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Change History
2 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Oct 26, 2026 | CVE Modified | CISA-ADP |
| Oct 22, 2026 | New CVE Received | [email protected] |