{"affected":[{"product":"Yosemite-Crew","source":"CNA: GitHub_M","vendor":"YosemiteCrew","versions":[{"status":"affected","version":"<= bc1a1824b1a7eba2bc61176cdb61d9a2a11bce57"}]}],"cveId":"CVE-2026-59979","cwes":["CWE-639","CWE-862"],"description":"YosemiteCrew provides organization-based service and task management. In the source-reported affected main and dev snapshots, YosemiteCrew's service and PMS task-library/template routes omit organization and permission checks. `authorizeCognito` in `apps/backend/src/middlewares/auth.ts` sets the authenticated user's ID but does not provide the `withOrgPermissions()` and `requirePermission(...)` checks used by protected siblings. In `apps/backend/src/routers/service.router.ts`, `PATCH /fhir/v1/service/:id` and `DELETE /fhir/v1/service/:id` are authentication-only, while `GET /fhir/v1/service/:id` has no authentication middleware. The trace through `apps/backend/src/controllers/web/service.controller.ts` to `apps/backend/src/services/service.service.ts` passes a global record ID into `ServiceModel.findById(oid)` without an `organisationId` filter. In `apps/backend/src/routers/task.router.ts`, `PUT /v1/task/pms/library/:libraryId`, `POST /v1/task/pms/templates`, `PATCH /v1/task/pms/templates/:templateId` and `DELETE /v1/task/pms/templates/:templateId` likewise lack organization/role enforcement. Any registered platform user, including a patient/companion-app account, can modify or delete another organization's service catalogue and PMS task-library/template data, affecting bookings and billing; service records can additionally be read without authentication. An earlier security change protected create routes but left these sibling operations exposed. A fixed release cannot be established from the available evidence.","epss":{"date":"2026-11-02","percentile":0.2213,"score":0.00295},"exploits":[],"kev":null,"metrics":[{"score":8.3,"severity":"high","source":"CNA: GitHub_M","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:H/A:H","version":"3.1"}],"modifiedAt":1793650843233,"publishedAt":1793201817833,"references":[{"source":"CNA: GitHub_M","tags":["x_refsource_CONFIRM"],"url":"https://github.com/YosemiteCrew/Yosemite-Crew/security/advisories/GHSA-256m-gg99-4274"}],"remediation":[],"revision":"d83db9b98e196ab6b72649fff87b70bfea30c5819847110afc0a8800e896144e","sources":[{"modifiedAt":1793650843233,"name":"CNA: GitHub_M","retrievedAt":1793653865903,"url":"https://www.cve.org/CVERecord?id=CVE-2026-59979"},{"modifiedAt":null,"name":"FIRST EPSS","retrievedAt":1793653891066,"url":"https://api.first.org/data/v1/epss?cve=CVE-2026-59979"}],"ssvc":{"assessedAt":1793650833498,"automatable":"yes","exploitation":"none","source":"ADP: CISA-ADP","technicalImpact":"partial"},"status":"published","title":"YosemiteCrew: Missing organization authorization on service and PMS library/template routes","updatedAt":1793653891066}