{"id":"ALPINE-CVE-2021-40839","details":"The rencode package through 1.0.6 for Python allows an infinite loop in typecode decoding (such as via ;\\x2f\\x7f), enabling a remote attack that consumes CPU and memory.","modified":"2026-11-03T06:32:41.200147042Z","published":"2021-09-10T02:15:07.933Z","upstream":["CVE-2021-40839"],"references":[{"type":"ADVISORY","url":"https://security.alpinelinux.org/vuln/CVE-2021-40839"}],"affected":[{"package":{"name":"py3-rencode","ecosystem":"Alpine:v3.17","purl":"pkg:apk/alpine/py3-rencode?arch=source"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.0.6-r7"}]}],"ecosystem_specific":{},"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2021-40839.json"}},{"package":{"name":"py3-rencode","ecosystem":"Alpine:v3.18","purl":"pkg:apk/alpine/py3-rencode?arch=source"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.0.6-r7"}]}],"ecosystem_specific":{},"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2021-40839.json"}},{"package":{"name":"py3-rencode","ecosystem":"Alpine:v3.19","purl":"pkg:apk/alpine/py3-rencode?arch=source"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.0.6-r7"}]}],"ecosystem_specific":{},"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2021-40839.json"}},{"package":{"name":"py3-rencode","ecosystem":"Alpine:v3.20","purl":"pkg:apk/alpine/py3-rencode?arch=source"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.0.6-r7"}]}],"ecosystem_specific":{},"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2021-40839.json"}},{"package":{"name":"py3-rencode","ecosystem":"Alpine:v3.21","purl":"pkg:apk/alpine/py3-rencode?arch=source"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.0.6-r7"}]}],"ecosystem_specific":{},"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2021-40839.json"}},{"package":{"name":"py3-rencode","ecosystem":"Alpine:v3.22","purl":"pkg:apk/alpine/py3-rencode?arch=source"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.0.6-r7"}]}],"ecosystem_specific":{},"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2021-40839.json"}},{"package":{"name":"py3-rencode","ecosystem":"Alpine:v3.23","purl":"pkg:apk/alpine/py3-rencode?arch=source"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.0.6-r7"}]}],"ecosystem_specific":{},"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2021-40839.json"}},{"package":{"name":"py3-rencode","ecosystem":"Alpine:v3.24","purl":"pkg:apk/alpine/py3-rencode?arch=source"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.0.6-r7"}]}],"ecosystem_specific":{},"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2021-40839.json"}}],"schema_version":"1.9.2","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"}]}