MediumVulnerability
CVE-2026-54746: Hatchet Dispatcher gRPC allows cross-tenant worker label overwrite
- Source
- NVD(opens in a new tab)
- Identifier
- CVE-2026-54746
- Published
- Record updated
- Affected
- github.com/hatchet-dev/hatchet >= 0.40.0, < 0.91.2
- Fixed in
- 0.91.2
- released June 30, 2026, 59 days before disclosure
- Known exploitation
- Not listed in the CISA Known Exploited Vulnerabilities catalog at the last check.
- EPSS
- 0.4%
Summary
CVE-2026-54746 affects Hatchet from 0.40.0 through 0.91.1. The Dispatcher gRPC service fails to check that a worker ID in Dispatcher/UpsertWorkerLabels and Dispatcher/Unsubscribe belongs to the tenant in the bearer-token context. An authenticated tenant owner who guesses another tenant's worker UUID can overwrite that worker's affinity labels or disconnect it, causing cross-tenant integrity impact and denial of service on multi-tenant or shared deployments. Single-tenant deployments are not practically affected.
Mitigation
Fixed in 0.91.1.
Topics
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