Tóm tắt nhanh
- CVE-2026-88978 là lỗ hổng mức TRUNG BÌNH (CVSS 4.3) ảnh hưởng github.com/hatchet-dev/hatchet.
- Xác suất bị khai thác trong 30 ngày tới (EPSS): 0.28%, cao hơn 20.7% các lỗ hổng khác.
- Cách xử lý: cập nhật lên 0.106.1 hoặc mới hơn.
Mô tả
Cross-tenant disclosure risk on DurableTask bidi RPC
This is a low-severity, low-risk cross-tenant data exposure vuln caused by blindly accepting a durable task id, in addition to a list of node and branch ids that identify records in that task's event log, and returning them to the caller via the handleWorkerStatus polling path.
Impact
This advisory requires an attacker to successfully guess a durable task's external uuid belonging to another tenant. External ids are generated uuid v4s (uuid.New() in Go), so exploitation requires prior knowledge of a target task UUID through an out-of-band channel. Thus, while the following environments are impacted, there is an extremely low probability it would be exploited.
Who is impacted. Any Hatchet deployment that hosts more than one tenant on the same instance:
- Hatchet Cloud (multi-tenant SaaS)
- Self-hosted Hatchet with multiple internal teams / business units sharing one instance
- Any deployment where a single tenant's API token can be obtained by an attacker
Single-tenant self-hosted deployments are unaffected in practice (the "victim" and "attacker" tenants would be the same).
Mô tả của NVD
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.
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