{"id":"CVE-2019-18874","aliases":["GHSA-qfc5-mcwq-26q8","PYSEC-2019-41"],"url":"https://o3.security/vulnerability/CVE-2019-18874","summary":"Double Free in psutil","details":"psutil (aka python-psutil) through 5.6.5 can have a double free. This occurs because of refcount mishandling within a while or for loop that converts system data into a Python object.","published":"2019-11-12T02:15:10.343Z","modified":"2026-07-08T19:02:30.070591Z","cvss":{"score":7.5,"severity":"HIGH","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"},"epss":null,"cisaKev":null,"exploitsKnown":null,"affectedPackages":[{"ecosystem":"PyPI","name":"psutil","fixedVersion":"5.6.6"}],"fix":{"url":"https://github.com/giampaolo/psutil/pull/1616","label":"giampaolo/psutil#1616"},"references":[{"type":"WEB","url":"https://lists.debian.org/debian-lts-announce/2019/11/msg00018.html"},{"type":"WEB","url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/2P7QI7MOTZTFXQYU23CP3RAWXCERMOAS/"},{"type":"WEB","url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/OLETTJYZL2SMBUI4Q2NGBMGPDPP54SRG/"},{"type":"WEB","url":"https://usn.ubuntu.com/4204-1/"},{"type":"ADVISORY","url":"https://github.com/giampaolo/psutil/pull/1616"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-07-08T19:02:30.070591Z"}}