CVE Catalog

CVE-2026-85667

CriticalCVSS 9.1
Published: Translated: NVD NIST

Summary

xiaobei through 5.5.2 fails to implement authentication or signature validation on webhook endpoints, allowing unauthenticated attackers to inject arbitrary messages into the agent pipeline. Attackers can publish malicious messages and exploit unvalidated media URL fetching for SSRF.

Risk Assessment

The risk includes manipulation of agent actions, unauthorized access to internal services, and potential integrity breaches of business processes.

Recommendation

Implement authentication and signature validation for all webhook endpoints and sanitize fetched media URLs.

Related vulnerabilities

Original NVD description (English source)

xiaobei through 5.5.2 fails to implement authentication or signature validation on webhook endpoints, allowing unauthenticated attackers to inject arbitrary messages into the agent pipeline. Attackers can publish malicious messages via the /webhook_worktool handler and exploit unvalidated media URL fetching to perform server-side request forgery against internal services.

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