Medium severity · published Feb 26, 2026
CVE-2026-28208
Junrar has arbitrary file write due to backslash path traversal bypass in LocalFolderExtractor on Linux/Unix
5.9
CVSS
14.7%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N
Attack vector
Network
Complexity
High
Privileges
None
User interaction
None
Confidentiality
None
Integrity
High
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)14.7% · higher than 97% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
JU
junrar · junrar
< 7.5.8 · source: vendor, NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-28208
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-28208
Patch
https://github.com/junrar/junrar/commit/947ff1d33f00f940aa68ae2593500291d799d954
Product
https://github.com/junrar/junrar/releases/tag/v7.5.8
Exploit
https://github.com/junrar/junrar/security/advisories/GHSA-j273-m5qq-6825
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3.7
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