CVE-2026-121556
FastBee through 2.1.0 IDOR via /iot/product By-ID Endpoints
FastBee through 2.1.0 contains an insecure direct object reference vulnerability in ProductController that allows authenticated tenant users to access other tenants' products by supplying their product IDs. Attackers can enumerate sequential product IDs to read MQTT account, password, and secret values, overwrite product configuration including tenant_id, or delete products with cascading rows.
Fixes and workarounds
Fix
The reporting source identifies this reference as a patch. Check the advisory for affected versions and supported release branches.
Source: CNA: VulnCheckAffected products and versions
| Product | Versions | Authority |
|---|---|---|
| FastBee beecue |
≥ 0; ≤ 2.1.0 (affected, semver)
Other versions: unaffected |
CNA: VulnCheck |
Version ranges are source assertions. Check the vendor advisory and your installed configuration before determining exposure.
CVSS assessments
| Version / score | Vector | Authority |
|---|---|---|
| 4.0 / 8.7 high |
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:L/SC:N/SI:N/SA:N | CNA: VulnCheck |
| 3.1 / 8.3 high |
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:L | CNA: VulnCheck |
| 4.0 / 8.7 high |
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:L/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X | NVD: [email protected] |
| 3.1 / 8.3 high |
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:L | NVD: [email protected] |
Exploit evidence
No exploit evidence in collected sources. This is not proof of no exploitation.
References
- https://github.com/beecue/FastBee/issues/32CNA: VulnCheck · issue-tracking
- https://github.com/kerwincui/FastBeeCNA: VulnCheck · product
- https://github.com/beecue/FastBee/commit/3393e3223965a9dc9682dfb2bd37635fffa0fbd2CNA: VulnCheck · patch
- https://github.com/kerwincui/FastBee/blob/v2.1.0/springboot/fastbee-open-api/src/main/java/com/fastbee/data/controller/ProductController.java#L77-L141CNA: VulnCheck · technical-description
- https://github.com/kerwincui/FastBee/blob/v2.1.0/springboot/fastbee-service/fastbee-iot-service/src/main/java/com/fastbee/iot/service/impl/ProductServiceImpl.java#L72-L92CNA: VulnCheck · technical-description
- https://github.com/kerwincui/FastBee/blob/v2.1.0/springboot/fastbee-service/fastbee-iot-service/src/main/resources/mapper/iot/ProductMapper.xml#L37-L67CNA: VulnCheck · technical-description
- https://www.vulncheck.com/advisories/fastbee-through-2.1.0-idor-via-iot-product-by-id-endpointsCNA: VulnCheck · third-party-advisory
- https://github.com/beecue/FastBee/commit/3393e3223965a9dc9682dfb2bd37635fffa0fbd2[email protected]
- https://github.com/beecue/FastBee/issues/32[email protected]
- https://github.com/kerwincui/FastBee[email protected]
- https://github.com/kerwincui/FastBee/blob/v2.1.0/springboot/fastbee-open-api/src/main/java/com/fastbee/data/controller/ProductController.java#L77-L141[email protected]
- https://github.com/kerwincui/FastBee/blob/v2.1.0/springboot/fastbee-service/fastbee-iot-service/src/main/java/com/fastbee/iot/service/impl/ProductServiceImpl.java#L72-L92[email protected]
- https://github.com/kerwincui/FastBee/blob/v2.1.0/springboot/fastbee-service/fastbee-iot-service/src/main/resources/mapper/iot/ProductMapper.xml#L37-L67[email protected]
- https://www.vulncheck.com/advisories/fastbee-through-2.1.0-idor-via-iot-product-by-id-endpoints[email protected]
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