CVE-2026-88978

Medium

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.

SeverityMedium

CVSS4.3

Exploit probability—

ProductGithub.com/hatchet-dev/hatchet

PublishedSep 21, 2026

First seenSep 21, 2026

Weakness typeCWE-639Authorization bypass through user-controlled key CWE-863Incorrect authorization

How to fix

Update

github.com/hatchet-dev/hatchet0.106.1 or later

Affected products

Product	Affected versions	Fixed in
github.com/hatchet-dev/hatchetGo	v < 0.106.1	0.106.1

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