Moderate severityNVD Advisory· Published Feb 26, 2026· Updated Mar 2, 2026
Junrar has arbitrary file write due to backslash path traversal bypass in LocalFolderExtractor on Linux/Unix
CVE-2026-28208
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.
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Affected packages
Versions sourced from the GitHub Security Advisory.
| Package | Affected versions | Patched versions |
|---|---|---|
com.github.junrar:junrarMaven | < 7.5.8 | 7.5.8 |
Affected products
2- junrar/junrarv5Range: < 7.5.8
Patches
Vulnerability mechanics
References
5- github.com/advisories/GHSA-j273-m5qq-6825ghsaADVISORY
- nvd.nist.gov/vuln/detail/CVE-2026-28208ghsaADVISORY
- github.com/junrar/junrar/commit/947ff1d33f00f940aa68ae2593500291d799d954ghsax_refsource_MISCWEB
- github.com/junrar/junrar/releases/tag/v7.5.8ghsax_refsource_MISCWEB
- github.com/junrar/junrar/security/advisories/GHSA-j273-m5qq-6825ghsax_refsource_CONFIRMWEB
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