CVE-2026-42572: medium-severity vulnerability in hatchet-dev hatchet
Hatchet: Cross-tenant information disclosure in `listTasksByDAGIds`
Published · Updated
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13Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 5.3epss 0.2%
Hatchet is a platform for orchestrating background tasks, AI agents, and durable workflows at scale. Prior to 0.83.39, a missing authorization directive on the GET /api/v1/stable/dags/tasks endpoint caused Hatchet's tenant-membership check to be skipped for this route. A user authenticated to any tenant on the same Hatchet instance could query the endpoint with another tenant's UUID and a DAG UUID belonging to that tenant, and receive task metadata for that DAG. This vulnerability is fixed in 0.83.39.
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N
Affected products
hatchet-dev · hatchetRelated CVEs — hatchet-dev hatchet
In the same product, most dangerous first.
CVE-2026-54746MEDIUMHatchet: Cross-tenant write/DoS to other tenants' workers via Dispatcher gRPC UpsertWorkerLabels and UnsubscribeEPSS 0.4%CVE-2026-108755MEDIUMHatchet through 0.110.5 Unauthenticated Memory Exhaustion via SNS Ingestion EndpointEPSS 0.3%CVE-2026-63342MEDIUMHatchet: Cross-Tenant Durable Task Event Log Disclosure via Missing Authorization CheckEPSS 0.3%CVE-2026-61681MEDIUMHatchet: SSRF via Unsigned UnsubscribeURL in SNS UnsubscribeConfirmation HandlerEPSS 0.3%CVE-2026-88978MEDIUMHatchet DurableTask WorkerStatus gRPC resolves caller-supplied durable-task UUIDs via ListSatisfiedEntries with no tenant_id filterEPSS 0.3%CVE-2026-84298LOWHatchet: Cross-tenant durable callback payload disclosure in Hatchet V1 DispatcherEPSS 0.2%