GHSA-538v-3wq9-4h3r Apache Pyfory python is vulnerable to deserialization of untrusted data

• PyPI pyfory: >= 0.12.0, < 0.12.3 → fixed in 0.12.3 • PyPI pyfury: >= 0.1.0, <= 0.10.3 (no fix yet)

Deserialization of untrusted data in python in pyfory versions 0.12.0 through 0.12.2, or the legacy pyfury versions from 0.1.0 through 0.10.3: allows arbitrary code execution. An application is vulnerable if it reads pyfory serialized data from untrusted sources. An attacker can craft a data stream that selects pickle-fallback serializer during deserialization, leading to the execution of `pickle.loads`, which is vulnerable to remote code execution. Users are recommended to upgrade to pyfory version 0.12.3 or later, which has removed pickle fallback serializer and thus fixes this issue.