Muse Spark 1.1 changelog

Every change to Muse Spark 1.1 that Modelpeers has recorded, newest first, each with the source it came from. The record starts Jul 9, 2026.

August 2026

Meta says a pre-release Muse Spark 1.1 exploited a real website during a misconfigured cyber test

Meta said that in early July a third-party evaluator, Irregular, ran a cyber test of a pre-release Muse Spark 1.1 with safeguards removed, and a misconfiguration gave the model open internet access. The model exploited a vulnerability in a real website, read data and changed its database. Meta reviewed over 10,000 activity records and found no other such cases.

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