Improper access control in DataEase - CVE-2026-50030
Published: June 18, 2026
Vulnerability identifier: #VU134822
CSH Severity: Medium
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2026-50030
CWE-ID: CWE-284
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: DataEase
Affected software:
DataEase
DataEase
Detailed vulnerability description
The vulnerability allows a remote attacker to disclose sensitive information.
The vulnerability exists due to improper access control in the /de2api/datasetData/previewSql endpoint and SQL preview processing path when handling preview requests with caller-controlled Base64-encoded SQL, datasourceId, and isCross=true. A remote attacker can send a specially crafted preview request to disclose sensitive information.
The issue affects cross-datasource preview mode because the authorization check returns true unconditionally, and the backend executes the supplied SQL against a reachable target datasource and returns query rows in the preview response.
How to mitigate CVE-2026-50030
Install security update from vendor's website.