Kurz gesagt
- CVE-2026-63342 ist eine Schwachstelle (MITTEL (CVSS 6.3)) in github.com/hatchet-dev/hatchet.
- Wahrscheinlichkeit einer Ausnutzung in den nächsten 30 Tagen (EPSS): 0.31%, höher als bei 24.5% aller Schwachstellen.
- Abhilfe: auf 0.91.1 oder neuer aktualisieren.
Description
Summary
The GET /api/v1/stable/durable-tasks/{durable-task} endpoint (listDurableEventLog) is missing tenant authorization validation, allowing any authenticated user to read durable task event logs from any tenant.
Impact
This CVE requires the attacker to successfully guess the target UUID.
Any authenticated Hatchet user can read durable task event logs from any other tenant, exposing:
- Task display names and workflow identifiers
- User messages (may contain sensitive business data)
- Wait conditions and branching logic
- Timing information
NVD description
Hatchet is a platform for orchestrating background tasks, AI agents, and durable workflows at scale. Prior to 0.91.1, api-contracts/openapi/paths/v1/workflow-runs/workflow_run.yaml defines the GET /api/v1/stable/durable-tasks/{durable-task} endpoint implemented by listDurableEventLog without requiring the target tenant as a parent resource, allowing an authenticated user who obtains another tenant's durable task UUID to read that task's event log. Disclosed data can include task display names, workflow identifiers, user messages, wait conditions, branching logic, and timing information. This issue is fixed in version 0.91.1.
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