Open-Source Event-Driven Orchestration Platform Vulnerability in Kestra
CVE-2026-73247

8.6HIGH

Key Information:

Vendor

Kestra-io

Status
Kestra
Vendor
CVE Published:
11 August 2026

What is CVE-2026-73247?

Kestra, an open-source event-driven orchestration platform, is susceptible to a security flaw present in versions prior to 2.0.0. This vulnerability arises from the handling of user-controlled HTTP URIs that are passed to the URI.create() method and the server-side HTTP client without proper restriction on private, loopback, or link-local destinations. An unauthenticated attacker could exploit this vulnerability to import and execute a flow, gaining unauthorized access to internal services or cloud metadata, posing significant security risks for users.

Affected Version(s)

kestra < 2.0.0

References

https://github.com/kestra-io/kestra/security/advisories/G...
x_refsource_CONFIRM

CVSS V3.1

Score:
8.6
Severity:
HIGH
Confidentiality:
High
Integrity:
None
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Changed

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.