CVE-2026-7679: Yunaiv Yudao-Cloud

High severity, CVSS 7.3. EPSS: 0.7% chance of exploitation in the next 30 days.

A security flaw has been discovered in YunaiV yudao-cloud up to 2026.01. This impacts the function getAccessToken of the file yudao-module-system-biz/src/main/java/io/github/ruoyi/common/oauth2/service/impl/OAuth2TokenServiceImpl.java. Performing a manipulation results in improper authentication. The attack can be initiated remotely. The exploit has been released to the public and may be used for attacks. The vendor was contacted early about this disclosure but did not respond in any way.

Affected products

• Yunaiv Yudao-Cloud: version 2026.01 only

Published 2026-05-03. Last modified 2026-06-17.