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.
Severity (CVSS)
| Base score | 6.5 |
|---|---|
| Severity | Medium |
| Version | CVSS 3.1 |
| Vector | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N |
| Provided by | CNA |
Weaknesses
- CWE-863 — CWE-863: Incorrect Authorization
Affected products
| Vendor | Product | Versions |
|---|---|---|
| kestra-io | kestra | < 1.0.45; >= 1.1.0, < 1.3.21 |
References
- https://github.com/kestra-io/kestra/security/advisories/GHSA-r6v3-xxwj-9h42 (x_refsource_CONFIRM)
Generated from the official CVE List on 27 Jun 2026 07:02 UTC.