CVE-2026-28208

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

Severity Score

5.9

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

Attend

*SSVC

Descriptions

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.

Junrar es una biblioteca de archivo RAR de Java de código abierto. Antes de la versión 7.5.8, una vulnerabilidad de salto de ruta con barra invertida en 'LocalFolderExtractor' permite a un atacante escribir archivos arbitrarios con contenido controlado por el atacante en cualquier lugar del sistema de archivos cuando se extrae un archivo RAR manipulado en Linux/Unix. Esto a menudo puede conducir a la ejecución remota de código (por ejemplo, sobrescribiendo perfiles de shell, código fuente, tareas cron, etc.). La versión 7.5.8 tiene una solución para el problema.

*Credits: N/A

CVSS Scores

GitHubv3.1 5.9

Attack Vector

Network

Attack Complexity

High

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

High

Availability

None

* Common Vulnerability Scoring System

SSVC

Decision:Attend

Exploitation

Poc

Automatable

Tech. Impact

Total

* Organization's Worst-case Scenario

Timeline

2026-02-25 CVE Reserved
2026-02-26 CVE Published
2026-03-02 CVE Updated
2026-03-02 First Exploit
2026-04-09 EPSS Updated
---------- Exploited in Wild
---------- KEV Due Date

CWE

CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

CAPEC

References (3)

URL	Tag	Source
https://github.com/junrar/junrar/releases/tag/v7.5.8	Product

URL	Date	SRC
https://github.com/junrar/junrar/security/advisories/GHSA-j273-m5qq-6825	2026-03-02

URL	Date	SRC
https://github.com/junrar/junrar/commit/947ff1d33f00f940aa68ae2593500291d799d954	2026-03-02

URL	Date	SRC

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Junrar Project Search vendor "Junrar Project"		Junrar Search vendor "Junrar Project" for product "Junrar"				< 7.5.8 Search vendor "Junrar Project" for product "Junrar" and version " < 7.5.8"		-		Affected