{"id":"CVE-2026-28208","aliases":["GHSA-j273-m5qq-6825"],"url":"https://o3.security/vulnerability/CVE-2026-28208","summary":"Junrar has arbitrary file write due to backslash path traversal bypass in LocalFolderExtractor on Linux/Unix","details":"Junrar is an open source java RAR archive library. Prior to version 7.5.8, a backslash path traversal vulnerability in `LocalFolderExtractor` allows an attacker to write arbitrary files with attacker-controlled content anywhere on the filesystem when a crafted RAR archive is extracted on Linux/Unix. This can often lead to remote code execution (e.g., overwriting shell profiles, source code, cron jobs, etc). Version 7.5.8 has a fix for the issue.","published":"2026-02-26T22:20:03.765Z","modified":"2026-08-12T15:32:09.562107Z","cvss":{"score":5.9,"severity":"MEDIUM","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N"},"epss":null,"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"Maven","name":"com.github.junrar:junrar","fixedVersion":"7.5.8"}],"fix":{"url":"https://github.com/junrar/junrar/commit/947ff1d33f00f940aa68ae2593500291d799d954","label":"junrar/junrar@947ff1d"},"references":[{"type":"WEB","url":"https://github.com/junrar/junrar/releases/tag/v7.5.8"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/28xxx/CVE-2026-28208.json"},{"type":"ADVISORY","url":"https://github.com/junrar/junrar/security/advisories/GHSA-j273-m5qq-6825"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-28208"},{"type":"FIX","url":"https://github.com/junrar/junrar/commit/947ff1d33f00f940aa68ae2593500291d799d954"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-08-12T15:32:09.562107Z"}}