CVE-2026-28208 MEDIUM

CVE-2026-28208: Junrar has arbitrary file write due to backslash path traversal bypass in LocalFolderExtractor on Linux/Unix

Vendor Junrar
Product junrar
Weakness CWE-22 · Path traversal
Published February 26, 2026
Last update March 2, 2026

CVSS base score

5.9/10
Attack vector Network
Attack complexity High
Privileges required None
User interaction None
Confidentiality None
Integrity High

CVSS vector

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N

What the vulnerability does

01Description

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.

Key dates

02Disclosure timeline

February 26, 2026 CVE published
March 2, 2026 Record updated