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CVE PROGRAM SOURCE RECORD6.5 Medium

CVE-2026-53577

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

Description

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 execution within the same tenant, bypassing execution-level and namespace-level isolation. This vulnerability is fixed in 1.0.45 and 1.3.21.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

kestra-io kestra

  • < 1.0.45affected
  • >= 1.1.0, < 1.3.21affected

References