Path Traversal in Junrar
CVE-2026-28208
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.
Vulnerability class: Path Traversal (Directory Traversal)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.9 (Medium). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N.
EPSS exploit prediction
EPSS: 0.008 (53.4th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 53rd percentile — 53.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.120 · newest: 0.008 · change: -0.113
Affected products
- Junrar — versions < 7.5.8
- Junrar Project
Weakness classification (CWE)
References
- github.com/junrar/junrar/security/advisories/GHSA-j273-m5qq-6825 (Exploit, Vendor Advisory)
- github.com/junrar/junrar/commit/947ff1d33f00f940aa68ae2593500291d799d954 (Patch)
- github.com/junrar/junrar/releases/tag/v7.5.8 (Product, Release Notes)
Frequently asked questions
- What is CVE-2026-28208?
- CVE-2026-28208 is a medium-severity vulnerability in Junrar, classified under Path Traversal. CVSS score: 5.9/10. Published 2026-02-26.
- How severe is CVE-2026-28208?
- Medium severity. CVSS v3 base score is 5.9 out of 10.