{"id":"CVE-2018-1000544","aliases":["GHSA-vqcq-mrmw-mcmg"],"url":"https://o3.security/vulnerability/CVE-2018-1000544","summary":"Rubyzip gem contains a Directory Traversal vulnerability in zip file component","details":"rubyzip gem rubyzip version 1.2.1 and earlier contains a Directory Traversal vulnerability in Zip::File component that can result in write arbitrary files to the filesystem. This attack appear to be exploitable via If a site allows uploading of .zip files , an attacker can upload a malicious file that contains symlinks or files with absolute pathnames \"../\" to write arbitrary files to the filesystem..\n\nThis is similar to CVE-2017-5946 which was patched in 1.2.1 but the fix in that case was incomplete.","published":"2018-06-26T16:29:02.353Z","modified":"2026-10-20T10:50:14.582746464Z","cvss":{"score":9.8,"severity":"CRITICAL","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"},"epss":null,"cisaKev":null,"exploitsKnown":null,"affectedPackages":[{"ecosystem":"RubyGems","name":"rubyzip","fixedVersion":"1.2.2"}],"fix":null,"references":[{"type":"ADVISORY","url":"https://access.redhat.com/errata/RHSA-2018:3466"},{"type":"ADVISORY","url":"https://lists.debian.org/debian-lts-announce/2018/08/msg00013.html"},{"type":"ADVISORY","url":"https://lists.debian.org/debian-lts-announce/2020/08/msg00002.html"},{"type":"EVIDENCE","url":"https://github.com/rubyzip/rubyzip/issues/369"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2018-1000544"},{"type":"WEB","url":"https://github.com/rubysec/ruby-advisory-db/blob/master/gems/rubyzip/CVE-2018-1000544.yml"},{"type":"PACKAGE","url":"https://github.com/rubyzip/rubyzip"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-10-20T10:50:14.582746464Z"}}