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CVE-2026-11876

Missing Authorization in get_deployed_stack Endpoint in zenml-io/zenml

In zenml-io/zenml version 0.94.2, the `GET /api/v1/stack-deployment/stack` endpoint (`get_deployed_stack`) lacks proper RBAC authorization checks, allowing any authenticated user to enumerate all deployed stacks across all users and tenants. This includes stack component details, service connector information, and user IDs of stack owners. The vulnerability arises from two issues: missing endpoint-level RBAC checks and the use of a server-side `Client()` that bypasses the RBAC enforcement layer by directly accessing the database through `SqlZenStore`. This exposes sensitive information such as infrastructure topology, service connector details, stack ownership, and deployment metadata, potentially enabling cross-tenant reconnaissance and further attacks in multi-tenant ZenML Pro/Cloud deployments.
Daten sind bereitgestellt durch das CVE Programm von einer CVE Numbering Authority (CNA) (Unstrukturiert).
Herstellerzenml-io
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Produkt zenml-io/zenml
Version unspecified
Version < 0.95.0
Status affected
VulnDex Vulnerability Enrichment
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Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.18% 0.082
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
security@huntr.dev 5 3.1 1.4
CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:N/A:N
CWE-862 Missing Authorization

The product does not perform an authorization check when an actor attempts to access a resource or perform an action.

https://huntr.com/bounties/3b434e02-0ee9-4b5e-a44b-0988b6f074c7
https://github.com/zenml-io/zenml/commit/9ad2c65f24ded22a5a98d289d63a7f629b434b61