Is this vulnerability remotely exploitable?

Yes. The flaw lies in a network-exposed token service method, so attackers who can reach the relevant OAuth2 endpoints may attempt exploitation remotely.

Does exploitation require prior authentication?

Not necessarily. Improper authentication issues often allow unauthenticated or partially authenticated callers to gain tokens; however, the exact requirement depends on how the affected token endpoint is integrated and exposed in a given deployment.

What is the safest general fix pattern?

Align the `getAccessToken` implementation with a well-defined OAuth2/OIDC security model: verify all relevant credentials and assertions before issuing tokens, rely on a centralized authentication framework where possible, and remove alternative code paths that issue or accept tokens without complete checks.

Severity:

HIGH RISK

(7.3)

Improper Authentication (CWE-287) in YunaiV yudao-cloud OAuth2 Token Service

CVE-2026-7679

Published:

May 2, 2026

Status:

Deferred

Summary

Affected Context

Exploit Preconditions

Why This Happens

Potential Impact

General Mitigation Guidance

How Teams Detect Issues Like This

Frequently Asked Questions

Source

NDV

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May 10, 2026

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Remote Code Execution by Authenticated Users

May 10, 2026

Vulnerability Type

Category:

Improper Authentication

CWE:

CWE-287

Impact:

Authentication Bypass

Severity:

HIGH RISK

(7.3)

CVSS Version:

3.1

Vulnerability Type

Category:

Improper Authentication

CWE:

CWE-287

Impact:

Authentication Bypass

Severity:

HIGH RISK

(7.3)

CVSS Version:

3.1

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Improper Authentication (CWE-287) in YunaiV yudao-cloud OAuth2 Token Service

Summary

Affected Context

Exploit Preconditions

Why This Happens

Potential Impact

General Mitigation Guidance

How Teams Detect Issues Like This

Frequently Asked Questions

Source

Recent Vulnerabilities

HIGH RISK

HIGH

(8.8)

PHP Code Injection via File Upload (CWE-94) in Aero CMS Admin Post Creation

HIGH RISK

HIGH

(8.8)

Code Injection (CWE-94) via Module Parameters in Evolution CMS

Vulnerability Type

Vulnerability Type

Vulnerability Type

Catch This CVE While Code Is Being Written

Ship clean & secure code faster

Ship clean & secure code faster

Ship clean & secure code faster

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