CVE-2026-28208

Junrar has arbitrary file write due to backslash path traversal bypass in LocalFolderExtractor on Linux/Unix

Published Feb 26, 2026 CVSS 3.1 · 5.9 Medium EPSS 14.7% KEV · Not listed
Description
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.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

Source ID Title
Github GHSA Github GHSA GHSA-j273-m5qq-6825 Junrar has an arbitrary file write due to backslash Path Traversal bypass in LocalFolderExtractor on Linux/Unix
History
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'poc', 'Technical Impact': 'total'}, 'version': '2.0.3'}

Type Values Removed Values Added
First Time appeared Junrar Project
Junrar Project junrar
CPEs cpe:2.3:a:junrar_project:junrar:*:*:*:*:*:*:*:*
Vendors & Products Junrar Project
Junrar Project junrar
Type Values Removed Values Added
First Time appeared Junrar
Junrar junrar
Vendors & Products Junrar
Junrar junrar
Type Values Removed Values Added
Description 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.
Title Junrar has arbitrary file write due to backslash path traversal bypass in LocalFolderExtractor on Linux/Unix
Weaknesses CWE-22
References
Metrics cvssV3_1

{'score': 5.9, 'vector': 'CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
GitHub_M
Published
Updated
Mar 2, 2026, 8:47 PM
Reserved
Feb 25, 2026, 3:28 PM
Status
Modified
Published
Feb 26, 2026, 11:16 PM
Modified
Jun 17, 2026, 10:28 AM
Severity
Moderate
Public date
Feb 26, 2026, 10:20 PM