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RUSTSEC-2024-0378
Risk of use-after-free in `borrowed` reads from Python weak references
Details
The family of functions to read "borrowed" values from Python weak references were fundamentally unsound, because the weak reference does itself not have ownership of the value. At any point the last strong reference could be cleared and the borrowed value would become dangling.
In PyO3 0.22.4 these functions have all been deprecated and patched to leak a strong reference as a mitigation. PyO3 0.23 will remove these functions entirely.
Are you affected?
Enter the version of the package you're using.
Affected packages
crates.io / pyo3
Introduced in:
0.22.0 Fixed in: 0.22.4 Upgrade pyo3 to 0.22.4 or newer (ecosystem crates.io).