Vulnerability Description
Hatchet is a platform for orchestrating background tasks, AI agents, and durable workflows at scale. From 0.40.0 until 0.91.1, the Dispatcher gRPC service does not verify that a request's worker ID belongs to the tenant identified by the bearer-token context in Dispatcher/UpsertWorkerLabels and Dispatcher/Unsubscribe. An authenticated owner of any tenant who guesses another tenant's worker UUID can overwrite that worker's affinity labels or disconnect the worker from the dispatcher. This can cause cross-tenant integrity impact and denial of service on multi-tenant Hatchet Cloud or shared self-hosted deployments. Single-tenant deployments are not practically affected because the attacker and target tenant are the same. This issue is fixed in version 0.91.1.
CVSS Score
MEDIUM
Related Weaknesses (CWE)
References
- https://github.com/hatchet-dev/hatchet/commit/591a30deb8b80f02eba7014997de387d71
- https://github.com/hatchet-dev/hatchet/releases/tag/v0.91.1
- https://github.com/hatchet-dev/hatchet/security/advisories/GHSA-8x7x-83cf-c3pg
FAQ
What is CVE-2026-54746?
CVE-2026-54746 is a vulnerability with a CVSS score of 6.4 (MEDIUM). Hatchet is a platform for orchestrating background tasks, AI agents, and durable workflows at scale. From 0.40.0 until 0.91.1, the Dispatcher gRPC service does not verify that a request's worker ID be...
How severe is CVE-2026-54746?
CVE-2026-54746 has been rated MEDIUM with a CVSS base score of 6.4/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-54746?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.