CVE-2026-68929

FastGPT , an open-source LLM platform, is vulnerable to unauthenticated WeChat channel hijack and denial of service in versions prior to 4.15.2 . The WeChat (iLink) share-channel endpoints authorize requests using only the publicly exposed shareId , with no authenticated identity or team-ownershi...

CVE-2026-68929 FastGPT: Unauthenticated WeChat channel hijack and denial of service via shareId-only authorization

FastGPT is an open-source LLM platform for building AI applications on a knowledge base. In versions prior to 4.15.2, the WeChat iLink share-channel endpoints authorize requests using only the public shareId, with no authenticated identity or team-ownership check. As a result, an unauthenticated...