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CVE-2026-88978— Hatchet DurableTask WorkerStatus gRPC resolves caller-supplied durable-task UUIDs via ListSatisfiedEntries with no tenant_id filter

Quick assessment

Affected
hatchet-dev hatchet
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

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 L

CVSS 4.3 · Medium EPSS 0.17% · P7

Affected Version Matrix 1

VendorProduct Version RangeStatus
hatchet-dev hatchet < 0.106.1 affected
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I. Basic Information for CVE-2026-88978

Vulnerability Information

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Vulnerability Title
Hatchet DurableTask WorkerStatus gRPC resolves caller-supplied durable-task UUIDs via ListSatisfiedEntries with no tenant_id filter
Source: CVE Program / CVE List V5
Vulnerability Description
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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
通过用户控制密钥绕过授权机制
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
hatchet-dev hatchet < 0.106.1 -

II. Public POCs for CVE-2026-88978

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III. Intelligence Information for CVE-2026-88978

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Patches & Fixes for CVE-2026-88978 (1)

Other References for CVE-2026-88978 (1)

Same Patch Batch · hatchet-dev · 2026-09-21 · 5 CVEs total

CVE-2026-61687 7.1 HIGH hatchet - Unauthenticated OAuth state CSRF / login-CSRF via empty-state collision in Valid
CVE-2026-63342 6.3 MEDIUM Hatchet: Cross-Tenant Durable Task Event Log Disclosure via Missing Authorization Check
CVE-2026-61681 4.1 MEDIUM Hatchet: SSRF via Unsigned UnsubscribeURL in SNS UnsubscribeConfirmation Handler
CVE-2026-84298 3.1 LOW Hatchet: Cross-tenant durable callback payload disclosure in Hatchet V1 Dispatcher

IV. Related Vulnerabilities

Same product: hatchet
Same vendor: hatchet-dev
Same weakness: CWE-639

V. Comments for CVE-2026-88978

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