CVE Catalog

CVE-2026-7679

HighCVSS 7.3
Published: Updated: Translated: NVD NIST

Exploitation Probability (EPSS)

Low risk
0.42%

36th percentile - higher than 36% of all known CVEs

Summary

A security flaw was found in YunaiV yudao-cloud up to 2026.01 affecting getAccessToken in OAuth2TokenServiceImpl.java. Manipulation results in improper authentication, and a public exploit exists.

Risk Assessment

A remote attacker could abuse the refresh-token compatibility path to gain access without a valid access token, undermining access control.

Recommendation

Limit trust in the refresh-token compatibility path and implement additional identity verification controls per vendor guidance.

Other vulnerabilities in yudao-cloud

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Original NVD description (English source)

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 explains: "[W]e intentionally retain the existing generic compatibility path that accepts a valid, unexpired stored refresh token when an access-token lookup is unavailable, for integrations such as reports and WebSocket. We are not introducing strict access-token-only verification, new revocation behavior or a separate trusted-entry API. This is a retained compatibility decision, not a claim that this behavior follows the standard OAuth separation or that every identity/revocation scenario has been eliminated."

Vulnerability data from NVD (NIST) · CISA KEV · EPSS