CVE-2026-88978

MEDIUM CVSS 3.1: 4.3 EPSS 0.28%
Updated Sep 25, 2026
Hatchet
Parameter Value
CVSS 4.3 (MEDIUM)
Fixed In 0.106.1
Type CWE-639 (Authorization Bypass), CWE-863 (Incorrect Authorization)
Vendor Hatchet
Public PoC No

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.

Attack Parameters

Attack Vector
Network
Can be exploited remotely
Attack Complexity
Low
Easy to exploit
Privileges Required
Low
Basic privileges needed
User Interaction
None
No user interaction needed

Impact Assessment

Confidentiality
Low
Partial data leak
Integrity
None
No data modification
Availability
None
No disruption

CVSS Vector v3.1