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CVE PROGRAM SOURCE RECORD8.6 High

CVE-2026-73247

Kestra: SSRF via Pebble http() function allows unauthenticated access to internal services & cloud metadata

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.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

kestra-io kestra

  • < 2.0.0affected

References