{"cve":"CVE-2026-54746","nvd":{"published":"2026-08-28T20:18:17.390","modified":"2026-09-09T21:09:13.080","status":"Deferred","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_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:L/A:L","score":6.4},"cwes":["CWE-639","CWE-862"],"references":["https://github.com/hatchet-dev/hatchet/commit/591a30deb8b80f02eba7014997de387d710986c9","https://github.com/hatchet-dev/hatchet/releases/tag/v0.91.1","https://github.com/hatchet-dev/hatchet/security/advisories/GHSA-8x7x-83cf-c3pg"],"products":[],"source":"nvd","synced_at":"2026-10-19T22:50:50.842544443+00:00"},"epss":{"cve":"CVE-2026-54746","score":0.00368,"percentile":0.30629,"date":"2026-10-31"},"kev":null,"osv":[{"id":"GHSA-8x7x-83cf-c3pg","url":"https://osv.dev/vulnerability/GHSA-8x7x-83cf-c3pg","summary":"Hatchet allows cross-tenant write/DoS to other tenants' workers via Dispatcher gRPC UpsertWorkerLabels and Unsubscribe","modified":"2026-09-02T19:41:35.619934036Z","packages":[{"ecosystem":"Go","name":"github.com/hatchet-dev/hatchet","purl":"pkg:golang/github.com/hatchet-dev/hatchet","ranges":[">=0.40.0 <0.91.2"],"fixed":["0.91.2"]}]},{"id":"GO-2026-6309","url":"https://osv.dev/vulnerability/GO-2026-6309","summary":"Hatchet allows cross-tenant write/DoS to other tenants' workers via Dispatcher gRPC UpsertWorkerLabels and Unsubscribe in github.com/hatchet-dev/hatchet","modified":"2026-09-02T19:30:09.197031252Z","packages":[{"ecosystem":"Go","name":"github.com/hatchet-dev/hatchet","purl":"pkg:golang/github.com/hatchet-dev/hatchet","ranges":[">=0.40.0 <0.91.2"],"fixed":["0.91.2"]}]}],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}