CVE-2026-57510 superplanehq CVE debrief

Who should care

Defenders and security teams using SuperPlane, especially those with multi-tenant environments, should assess their exposure and verify if their systems are vulnerable to this high-severity attack.

Why it matters

CVE-2026-57510 is a high-severity vulnerability in SuperPlane before version 0.27.0, allowing authenticated users with viewer-level access to access resources across tenant boundaries. Defenders should prioritize verifying exposure, assessing impact, and implementing compensating controls to prevent data breaches and workflow disruptions.

• Read access to cross-tenant execution history and event payloads containing sensitive secrets
• Write access to queue items and canvas events in victim organizations
• Deletion of arbitrary canvases
• Disruption of automation workflows across tenant boundaries

Technical summary

The vulnerability is caused by a broken object-level authorization in the CanvasService gRPC handlers of SuperPlane before version 0.27.0. This 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. The vulnerability enables attackers to 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. Defenders should prioritize verifying exposure and assessing the impact of this vulnerability on their

Defensive priority

Defenders should prioritize verifying exposure and assessing the impact of this vulnerability on their systems, especially those using SuperPlane versions prior to 0.27.0.

Recommended defensive actions

• Verify SuperPlane version and check for updates to version 0.27.0 or later
• Assess exposure and potential impact on systems using SuperPlane
• Implement compensating controls to monitor and restrict cross-tenant access
• Review and update access controls for CanvasService gRPC handlers
• Confirm whether affected SuperPlane deployments exist in managed environments and assign an owner for follow-up
• Review the supplied official advisory or CVE record to validate affected scope, severity, and vendor guidance
• Plan vendor-supported updates or mitigations through normal change control where exposure is confirmed

Evidence notes

The CVE record and NVD entry provide details on the vulnerability, including its description, CVSS score, and affected versions. However, the exact scope of affected systems and the availability of vendor remediation require verification from official sources.

Sources and references

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.