CVE-2026-28208
Path Traversal in Junrar LocalFolderExtractor Enables Remote Code Execution
Publication date: 2026-02-26
Last updated on: 2026-03-02
Assigner: GitHub, Inc.
Description
Description
CVSS Scores
EPSS Scores
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Meta Information
Affected Vendors & Products
| Vendor | Product | Version / Range |
|---|---|---|
| junrar_project | junrar | to 7.5.8 (exc) |
Helpful Resources
Exploitability
| CWE ID | Description |
|---|---|
| CWE-22 | The product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory. |
Attack-Flow Graph
AI Powered Q&A
Can you explain this vulnerability to me?
This vulnerability exists in the Junrar open source Java RAR archive library prior to version 7.5.8. It is a backslash path traversal flaw in the LocalFolderExtractor component. An attacker can craft a malicious RAR archive that, when extracted on Linux or Unix systems, allows writing arbitrary files anywhere on the filesystem.
This means the attacker can place files with attacker-controlled content in locations they normally should not have access to, potentially overwriting important files.
How can this vulnerability impact me? :
The vulnerability can lead to serious impacts such as remote code execution. For example, an attacker could overwrite shell profiles, source code, cron jobs, or other critical files on the system.
This unauthorized file write can compromise system integrity, allow persistent access, or disrupt normal operations.
How does this vulnerability affect compliance with common standards and regulations (like GDPR, HIPAA)?:
I don't know
How can this vulnerability be detected on my network or system? Can you suggest some commands?
I don't know
What immediate steps should I take to mitigate this vulnerability?
To mitigate this vulnerability, upgrade Junrar to version 7.5.8 or later, which contains the fix for the backslash path traversal issue.