{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "extracted_events": [
              {
                "introduced": "0.40.0"
              },
              {
                "fixed": "0.91.1"
              }
            ],
            "source": [
              "AFFECTED_FIELD",
              "REFERENCES"
            ]
          },
          "events": [
            {
              "introduced": "9efd9368fdef6eb2f0497e28fdc0d66ddeabfac9"
            },
            {
              "fixed": "591a30deb8b80f02eba7014997de387d710986c9"
            },
            {
              "fixed": "06c1fe43543e853ea98ecc2e6a575e2b8310bbeb"
            }
          ],
          "repo": "https://github.com/hatchet-dev/hatchet",
          "type": "GIT"
        }
      ]
    }
  ],
  "aliases": [
    "GHSA-8x7x-83cf-c3pg"
  ],
  "database_specific": {
    "cna_assigner": "GitHub_M",
    "cwe_ids": [
      "CWE-639",
      "CWE-862"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/54xxx/CVE-2026-54746.json"
  },
  "details": "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.",
  "id": "CVE-2026-54746",
  "modified": "2026-08-30T03:30:28.878817546Z",
  "published": "2026-08-28T16:08:37.816Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/hatchet-dev/hatchet/releases/tag/v0.91.1"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/54xxx/CVE-2026-54746.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/hatchet-dev/hatchet/security/advisories/GHSA-8x7x-83cf-c3pg"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-54746"
    },
    {
      "type": "FIX",
      "url": "https://github.com/hatchet-dev/hatchet/commit/591a30deb8b80f02eba7014997de387d710986c9"
    }
  ],
  "schema_version": "1.9.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:L/A:L",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Hatchet: Cross-tenant write/DoS to other tenants' workers via Dispatcher gRPC UpsertWorkerLabels and Unsubscribe"
}