CVE-2026-53577 Kestra: Cross-Execution File Read via Preview Endpoint (IDOR)

Kestra is an open-source, event-driven orchestration platform. Prior to 1.0.45 and 1.3.21, the previewFileFromExecution endpoint GET /api/v1/tenant/executions/executionId/file/preview contains an access control bypass that allows any authenticated user to read output files from any other executio...

CVE-2026-53577

CVE-2026-53577 – Kestra : Affects the previewFileFromExecution endpoint (GET /api/v1/{tenant}/executions/{executionId}/file/preview). Before versions 1.0.45 and 1.3.21, there was an access control bypass that allowed any authenticated user to read output files from any other execution within the ...

CVE-2026-53577 Kestra: Cross-Execution File Read via Preview Endpoint (IDOR)

Kestra is an open-source, event-driven orchestration platform. Prior to 1.0.45 and 1.3.21, the previewFileFromExecution endpoint GET /api/v1/tenant/executions/executionId/file/preview contains an access control bypass that allows any authenticated user to read output files from any other executio...