{"id":"CVE-2020-35917","details":"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\u003cPy\u003cT\u003e\u003e.","aliases":["GHSA-2vx6-fcw6-hpr6","RUSTSEC-2020-0074"],"modified":"2026-09-15T14:15:08.294070Z","published":"2020-12-31T09:15:15.833Z","references":[{"type":"FIX","url":"https://rustsec.org/advisories/RUSTSEC-2020-0074.html"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/pyo3/pyo3","events":[{"introduced":"0"},{"fixed":"0fdd09afda0c60562ced9df8734778de8555eb10"}],"database_specific":{"cpe":"cpe:2.3:a:pyo3_project:pyo3:*:*:*:*:*:rust:*:*","extracted_events":[{"introduced":"0"},{"fixed":"0.12.4"}],"source":"CPE_RANGE"}}],"versions":["v0.12.3","v0.11.1","v0.11.0","v0.10.0","v0.10.1","v0.9.1","v0.9.0","v0.9.0-alpha.1","v0.8.5","v0.8.4","v0.8.3","v0.8.2","v0.8.1","v0.8.0","v0.7.0","v0.7.0-alpha.1","v0.6.0","pyo3-derive-backend-0.6.0","v0.6.0-alpha.4","v0.6.0-alpha.3","v0.6.0-alpha.2","v0.6.0-alpha.1","v0.5.0","v0.5.0-alpha.3","v0.5.0-alpha.2","v0.4.1","v0.4.0","v0.3.2","v0.3.1","v0.3.0","v0.2.6","v0.2.5","v0.2.4","v0.2.3","v0.2.2","0.2.2","v0.2.1","0.2.1","v0.2.0","0.2.0","v0.1.0","0.1.0"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2020-35917.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H"}]}