{"id":"AZL-99087","summary":"CVE-2026-85396 affecting package rubygem-rubyzip 2.3.2-1","details":"rubyzip versions before 3.4.0 contain a path traversal vulnerability in Zip::Entry#extract that fails to properly validate extraction paths using prefix comparison without trailing separators. Attackers can craft archive entries with names like ../upload_backup/owned.sh to write files outside the intended extraction directory into sibling paths sharing the destination prefix.","modified":"2026-09-05T05:27:51Z","published":"2026-09-03T19:17:31Z","upstream":["CVE-2026-85396"],"references":[{"type":"WEB","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-85396"}],"affected":[{"package":{"name":"rubygem-rubyzip","ecosystem":"Azure Linux:3","purl":"pkg:rpm/azure-linux/rubygem-rubyzip"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"last_affected":"2.3.2-1"}]}],"database_specific":{"source":"https://github.com/microsoft/AzureLinuxVulnerabilityData/blob/main/osv/AZL-99087.json"}}],"schema_version":"1.9.0"}