**[Brave Research Report: zkLogin Has Three Major Vulnerabilities, Stemming from Semantic Ambiguity, Lack of Binding Guarantees, and Trust Transfer in Architecture]** Foresight News reports that the Brave research team has released a report pointing out three major vulnerabilities in the blockchain transaction authorization system zkLogin. The report indicates that these vulnerabilities are not implementation issues but rather inherent flaws in the current architecture and overall system of zkLogin. The three vulnerabilities highlighted in the report include: the potential semantic ambiguity in zkLogin's implicit reliance on externally issued JSON documents, the system's conversion of short-term holder authentication documents into persistent authorization credentials, and the introduction of privacy and governance risks through zkLogin's re-centralization of trust. These vulnerabilities do not involve breaking cryptography or zero-knowledge proofs but arise from semantic ambiguity, lack of binding guarantees, and trust transfer in the architecture.