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OpenAdvisories
Medium · 5.3 CVE-2026-42572 EUVD-2026-30339GHSA-55gc-6fmc-fpx9GO-2026-5134

Hatchet: Cross-tenant information disclosure in `listTasksByDAGIds`

Published May 14, 2026 · Updated May 15, 2026 · Assigned by GitHub_M

Description

Hatchet is a platform for orchestrating background tasks, AI agents, and durable workflows at scale. Prior to 0.83.39, a missing authorization directive on the GET /api/v1/stable/dags/tasks endpoint caused Hatchet's tenant-membership check to be skipped for this route. A user authenticated to any tenant on the same Hatchet instance could query the endpoint with another tenant's UUID and a DAG UUID belonging to that tenant, and receive task metadata for that DAG. This vulnerability is fixed in 0.83.39.

Affected products

VendorProductAffectedFixed
hatchet-dev hatchet < 0.83.38 —

Fixed in Linux distributions

Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.

ReleasePackageFixed inAdvisory
openSUSE Leap 16.0 govulncheck-vulndb 0.0.20260723T184607-160000.1.1 openSUSE-SU-2026:21483-1

Affected packages

EcosystemPackageAffectedFixedRecord
Go github.com/hatchet-dev/hatchet < 0.83.39 0.83.39 GHSA-55gc-6fmc-fpx9

Advisories 1

References