Path traversal in junrar - #VU139361
Published: July 26, 2026
Vulnerability identifier: #VU139361
CSH Severity: Low
CVSS v4: 6.3 [CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N]
CVE-ID: N/A
CWE-ID: CWE-22
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to create directories outside the intended extraction directory.
The vulnerability exists due to path traversal in LocalFolderExtractor makeFile() and createFile() when extracting a crafted RAR archive. A remote attacker can supply a malicious RAR archive to create directories outside the intended extraction directory.
This can be used for filesystem pollution or file-vs-directory squatting.
Affected software
junrar
Remediation
Install security update from vendor's website.
junrar - update to 7.6.1