Path Traversal Vulnerability in Kestra Open-Source Orchestration Platform
CVE-2026-45807

7.7HIGH

Key Information:

Vendor

Kestra-io

Status
Kestra
Vendor
CVE Published:
26 June 2026

What is CVE-2026-45807?

Kestra, an open-source event-driven orchestration platform, is vulnerable due to improper sanitization of user-provided kestra:// URIs in several API endpoints. The vulnerability allows an authenticated user to bypass security measures, enabling access to sensitive files on the server, such as /etc/passwd and other critical data stored on the host filesystem. This issue is resolved in versions 1.0.43 and 1.3.19, emphasizing the need for users to update to mitigate potential data breaches.

Affected Version(s)

kestra < 1.0.43 < 1.0.43

kestra >= 1.1.0, < 1.3.19 < 1.1.0, 1.3.19

References

https://github.com/kestra-io/kestra/security/advisories/G...
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CVSS V3.1

Score:
7.7
Severity:
HIGH
Confidentiality:
High
Integrity:
None
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
None
Scope:
Changed

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.