CVE-2026-88978: medium-severity vulnerability in hatchet-dev hatchet
Hatchet DurableTask WorkerStatus gRPC resolves caller-supplied durable-task UUIDs via ListSatisfiedEntries with no tenant_id filter
Published · Updated
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13Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 4.3epss 0.3%
Hatchet is a platform for orchestrating background tasks, AI agents, and durable workflows at scale. Prior to 0.106.1, the WorkerStatus gRPC polling path in pkg/repository/durable_events.go passes caller-supplied durable task, node, and branch identifiers to ListSatisfiedEntries without a tenant filter, allowing an authenticated tenant worker that knows another tenant's durable-task UUID to retrieve matching durable event-log records. The UUIDv4 requirement makes exploitation unlikely, and single-tenant deployments are unaffected in practice. This issue is fixed in version 0.106.1.
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/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-2026-84298LOWHatchet: Cross-tenant durable callback payload disclosure in Hatchet V1 DispatcherEPSS 0.2%CVE-2026-42572MEDIUMHatchet: Cross-tenant information disclosure in `listTasksByDAGIds`EPSS 0.2%