cve.bz

CVE-2020-35917

5.5 mediumEPSS 0.4%

Medium (5.5) in pyo3 project pyo3. EPSS 0.4% chance of exploitation in the next 30 days. Fixed in pyo3 0.12.4.

An issue was discovered in the pyo3 crate before 0.12.4 for Rust. There is a reference-counting error and use-after-free in From<Py<T>>.

Severity

CVSS 3.1

5.5 medium
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
EPSS
0.4% chance of exploitation in the next 30 days; higher than 33% of CVEs (scores of 2026-10-31)
CWE
CWE-416
Published
Modified
Record from
the NVD, synced

Affected

Packages (OSV)

AdvisoryEcosystemPackageAffectedFixed in
GHSA-2vx6-fcw6-hpr6crates.iopyo3>=0.12.0 <0.12.40.12.4
RUSTSEC-2020-0074crates.iopyo3>=0.12.0 <0.12.40.12.4

References

Check your stackJSON