FUXA provides guest and invalid-token access to protected read APIs in secure mode

### Summary When `secureEnabled=true`, FUXA `1.3.0-2773` still allows guest and invalid-token requests to read project, alarms, and scheduler APIs. ### Details In secure mode, requests with no token or an explicitly invalid token were still able to access protected read endpoints. Confirmed behavior: - guest `GET /api/project` returned `200 OK` - invalid-token requests to `/api/project` also returned successful responses containing project data - guest and invalid-token requests also returned `200 OK` on: - `/api/alarms` - `/api/scheduler` Relevant code paths identified during analysis: - `server/api/jwt-helper.js` - `verifyToken()` converts missing-token or invalid-token states into guest context instead of rejecting the request - `server/api/projects/index.js` - `server/api/alarms/index.js` - `server/api/scheduler/index.js` These handlers accepted the guest context and returned sensitive data in secure mode. ### PoC Tested only against isolated local lab instances under the original tester's control. No production, customer, shared, or third-party systems were involved. Reproduction: 1. Start FUXA `1.3.0-2773`. 2. Set `secureEnabled=true`. 3. Send unauthenticated requests to: - `GET /api/project` - `GET /api/alarms` - `GET /api/scheduler?id=test` 4. Observe `200 OK` responses. 5. Send the same requests with an explicitly invalid `x-access-token` value. 6. Observe the same successful responses. The exact HTTP requests and local PoC script used for confirmation can be provided upon request. ### Impact This is an authentication/authorization weakness in secure mode. Impact includes: - project metadata disclosure - alarms disclosure - scheduler information disclosure - assistance in reconnaissance/follow-on attacks Operators who believe secure mode protects these APIs are impacted.

Source published

28 May 2026 20:33:11 UTC

Source modified

28 May 2026 20:56:25 UTC

Observed here

24 Oct 2026 13:17:17 UTC

Source terms

GitHub Advisory Database · CC-BY-4.0

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This view projects the publisher's source fields for reading; the original JSON retains additional fields and CVE enrichment containers. Attribution: osv · GitHub Advisory Database · CC-BY-4.0. Source text is retained; field grouping and change labels are provided by ChangeIntel.

CVSS_V4 · CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:P

Publisher rating · MODERATE