Hatchet: Cross-tenant durable callback payload disclosure in Hatchet V1 Dispatcher

Summary The V1 DurableTask stream handler registers worker-supplied durable task external IDs in an in-memory callback routing map before verifying that the authenticated tenant owns the task. If the tenant-scoped ownership check fails, the handler logs the error and continues, but the map entry...

CVE-2026-84298

Hatchet , a platform for orchestrating background tasks and durable workflows, contains a cross-tenant information disclosure in its V1 DurableTask stream handler prior to version 0.95.3. The root cause is that worker-supplied task_external_id values are stored in the durableInvocations routing m...

CVE-2026-84298 Hatchet: Cross-tenant durable callback payload disclosure in Hatchet V1 Dispatcher

Hatchet is a platform for orchestrating background tasks, AI agents, and durable workflows at scale. Prior to 0.95.3, the V1 DurableTask stream handler stores worker-supplied taskexternalid values in the durableInvocations routing map before tenant ownership is verified, and callback delivery...