CVE-2026-57510 SuperPlane < 0.27.0 Broken Object Level Authorization via CanvasService gRPC

High 8.7 Published Updated

Authenticated users can bypass organization scoping to read, modify, or delete resources in other tenants via gRPC handlers.

Exploited in the wild
Not known
Login needed
Any signed-in user
Attackable
Over the internet
Victim action needed
Not needed
Fix
None listed

What is CVE-2026-57510?

CVE-2026-57510 is a high-severity missing authorization vulnerability in superplanehq superplane, published on 28 Jul 2026. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

SuperPlane before 0.27.0 contains a broken object-level authorization vulnerability in the CanvasService gRPC handlers that allows authenticated users with viewer-level access to one organization to access resources belonging to other organizations by supplying arbitrary canvas or queue UUIDs without organization scoping. Attackers can read cross-tenant execution history and event payloads containing sensitive secrets, write queue items and canvas events into victim organizations, delete arbitrary canvases, and disrupt automation workflows across tenant boundaries.

Weakness: CWE-639

Which versions are affected by CVE-2026-57510?

How do I fix CVE-2026-57510?

No fix has been published for CVE-2026-57510 yet. Limit exposure of the affected software until one is available.

Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.

Is CVE-2026-57510 being exploited?

There is no known exploitation of CVE-2026-57510 in the wild and no public exploit code.

Sources

Also known as GHSA-hg7x-q6w3-jcf5.

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