CVE-2026-53577
🔶 mediumSummary
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.
CVSS Score
6.5
Medium
EPSS Score
0.3
Exploit Probability
Published Date
2026-06-26
First Seen: 2026-06-27
📊 Relative Risk Intelligence
This CVE is Lower Risk - more severe than 47.8% of all 330,245 vulnerabilities in our database.
#172,466
Below average severity
Severity Percentile
🎯 CISA SSVC Assessment Updated: Jun 27, 2026
🔍 Exploitation Status
Poc
Proof-of-concept available
⚙️ Automatable
NO
Requires human interaction
💥 Technical Impact
Partial
Limited system impact
SSVC data provided by
CISA
Last Modified
2026-06-27
Source
NVD 🔗
CVSS Vector 3.1
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
CWE IDs (Weakness Types)