RUSTSEC-2026-0013

See a problem?
Please try reporting it to the source first.

Source

https://rustsec.org/advisories/RUSTSEC-2026-0013

Import Source

https://github.com/rustsec/advisory-db/blob/osv/crates/RUSTSEC-2026-0013.json

JSON Data

https://api.osv.dev/v1/vulns/RUSTSEC-2026-0013

Published

2026-02-18T12:00:00Z

Modified

2026-02-18T12:20:35.750245Z

Summary

Type confusion when accessing data from sublasses of subclasses of native types with `abi3` feature targeting Python 3.12 and up

Details

PyO3 0.28.1 added support for #[pyclass(extends=PyList)] struct NativeSub (and other native types) when targeting Python 3.12 and up with the abi3 feature.

It was discovered that subclasses of such classes would use the type of the subclass when attempting to access to data of NativeSub contained within Python objects, amounting to memory corruption.

PyO3 0.28.2 fixed the issue by using the type of (e.g.) NativeSub correctly.

Database specific

{
    "license": "CC0-1.0"
}

References

Affected packages

crates.io / pyo3

Package

Name: pyo3; View open source insights on deps.dev
Purl: pkg:cargo/pyo3

Affected ranges

Type: SEMVER
Events: Introduced

0.28.0

Fixed

0.28.2

Ecosystem specific

{
    "affects": {
        "functions": [],
        "os": [],
        "arch": []
    },
    "affected_functions": null
}

Database specific

source

"https://github.com/rustsec/advisory-db/blob/osv/crates/RUSTSEC-2026-0013.json"