# CVE-2026-116016: yudao-cloud through 2026.09 Data Permission Bypass via data-permission-enable Header

Status: published. Published: 2026-10-24. Updated: 2026-11-03.

yudao-cloud through 2026.09 contains an authorization bypass vulnerability that allows authenticated users to evade row-level data scope restrictions by sending a data-permission-enable header set to false. Attackers can add this header to /admin-api requests, which DataPermissionRpcWebFilter trusts, to read or modify other departments' and users' records within the same tenant.

## Remediation

- fix: The reporting source identifies this reference as a patch. Check the advisory for affected versions and supported release branches. (source: CNA: VulnCheck) — https://github.com/YunaiV/yudao-cloud/commit/4e415cd6c30d3abb929a127bb7038101d9f4c943

## Affected products and versions

- YunaiV / yudao-cloud (YunaiV/yudao-cloud): ≥ 0; ≤ 2026.09 (affected, custom). Source: CNA: VulnCheck

## Severity and prioritization

- CVSS 4.0: 7.1 (high); CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:L/VA:N/SC:N/SI:N/SA:N; source: CNA: VulnCheck

- CVSS 3.1: 7.1 (high); CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:N; source: CNA: VulnCheck

- CVSS 4.0: 7.1 (high); CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:L/VA:N/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; source: NVD: disclosure@vulncheck.com

- CVSS 3.1: 7.1 (high); CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:N; source: NVD: disclosure@vulncheck.com

- CISA KEV: No listing in collected sources

- EPSS: 0.25% as of 2026-11-03; percentile 17.11%

- SSVC: exploitation poc; automatable no; technical impact partial; source ADP: CISA-ADP

- Weaknesses: CWE-807

## Exploit evidence

- exploit: https://hackmd.io/@hieuPenguinnn/yudao-cloud-data-permission-enable-header-datascope-bypass (ADP: CISA-ADP)

## References

- https://github.com/YunaiV/yudao-cloud/issues/343 (CNA: VulnCheck; issue-tracking)

- https://github.com/YunaiV/yudao-cloud/commit/4e415cd6c30d3abb929a127bb7038101d9f4c943 (CNA: VulnCheck; patch)

- https://github.com/YunaiV/yudao-cloud/blob/d322a10b9898a084412032e94336af06835978c2/yudao-framework/yudao-spring-boot-starter-biz-data-permission/src/main/java/cn/iocoder/yudao/framework/datapermission/core/rpc/DataPermissionRpcWebFilter.java#L21-L36 (CNA: VulnCheck; technical-description)

- https://github.com/YunaiV/yudao-cloud/blob/d322a10b9898a084412032e94336af06835978c2/yudao-gateway/src/main/java/cn/iocoder/yudao/gateway/filter/security/TokenAuthenticationFilter.java#L84-L92 (CNA: VulnCheck; technical-description)

- https://hackmd.io/@hieuPenguinnn/yudao-cloud-data-permission-enable-header-datascope-bypass (CNA: VulnCheck; third-party-advisory)

- https://www.vulncheck.com/advisories/yudao-cloud-through-2026.09-data-permission-bypass-via-data-permission-enable-header (CNA: VulnCheck; third-party-advisory)

- https://hackmd.io/@hieuPenguinnn/yudao-cloud-data-permission-enable-header-datascope-bypass (ADP: CISA-ADP; exploit)

- https://github.com/YunaiV/yudao-cloud/blob/d322a10b9898a084412032e94336af06835978c2/yudao-framework/yudao-spring-boot-starter-biz-data-permission/src/main/java/cn/iocoder/yudao/framework/datapermission/core/rpc/DataPermissionRpcWebFilter.java#L21-L36 (disclosure@vulncheck.com)

- https://github.com/YunaiV/yudao-cloud/blob/d322a10b9898a084412032e94336af06835978c2/yudao-gateway/src/main/java/cn/iocoder/yudao/gateway/filter/security/TokenAuthenticationFilter.java#L84-L92 (disclosure@vulncheck.com)

- https://github.com/YunaiV/yudao-cloud/commit/4e415cd6c30d3abb929a127bb7038101d9f4c943 (disclosure@vulncheck.com)

- https://github.com/YunaiV/yudao-cloud/issues/343 (disclosure@vulncheck.com)

- https://hackmd.io/@hieuPenguinnn/yudao-cloud-data-permission-enable-header-datascope-bypass (disclosure@vulncheck.com)

- https://www.vulncheck.com/advisories/yudao-cloud-through-2026.09-data-permission-bypass-via-data-permission-enable-header (disclosure@vulncheck.com)

- https://hackmd.io/@hieuPenguinnn/yudao-cloud-data-permission-enable-header-datascope-bypass (134c704f-9b21-4f2e-91b3-4a467353bcc0)

## Provenance

- CNA: VulnCheck: https://www.cve.org/CVERecord?id=CVE-2026-116016; retrieved 2026-11-03; source updated 2026-11-03

- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-116016; retrieved 2026-11-03; source updated 2026-11-03

- FIRST EPSS: https://api.first.org/data/v1/epss?cve=CVE-2026-116016; retrieved 2026-11-03; source updated Not reported

Revision: e5e6316289eb4c8b059ff997c0ca57974810c31a6becb58137be89ac8081b66a

Canonical: https://y2.dev/cve/CVE-2026-116016

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