Critical severity9.1NVD Advisory· Published Sep 4, 2026
CVE-2026-85667
CVE-2026-85667
Description
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.
Affected products
1- Range: <=5.5.2
Patches
Vulnerability mechanics
References
3News mentions
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