Kestra is an open-source, event-driven orchestration platform. Prior to 2.0.0, Kestra's core/src/main/java/io/kestra/core/runners/pebble/functions/HttpFunction.java passes the user-controlled http() uri argument to URI.create() and the server-side HTTP client without restricting private, loopback, or link-local destinations, allowing an unauthenticated attacker to import and execute a flow that accesses internal services or cloud metadata.

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Wed, 12 Aug 2026 12:30:00 +0000

Type Values Removed Values Added
First Time appeared Kestra-io
Kestra-io kestra
Vendors & Products Kestra-io
Kestra-io kestra

Tue, 11 Aug 2026 22:15:00 +0000

Type Values Removed Values Added
Description Kestra is an open-source, event-driven orchestration platform. Prior to 2.0.0, Kestra's core/src/main/java/io/kestra/core/runners/pebble/functions/HttpFunction.java passes the user-controlled http() uri argument to URI.create() and the server-side HTTP client without restricting private, loopback, or link-local destinations, allowing an unauthenticated attacker to import and execute a flow that accesses internal services or cloud metadata.
Title Kestra: SSRF via Pebble http() function allows unauthenticated access to internal services & cloud metadata
Weaknesses CWE-918
References
Metrics cvssV3_1

{'score': 8.6, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N'}


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cve-icon MITRE

Status: PUBLISHED

Assigner: GitHub_M

Published:

Updated: 2026-08-11T21:50:21.039Z

Reserved: 2026-08-11T17:18:01.597Z

Link: CVE-2026-73247

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-08-11T22:19:05.417

Modified: 2026-08-11T22:19:05.417

Link: CVE-2026-73247

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-08-12T12:15:04Z

Weaknesses