Path traversal in junrar - #VU154057
Published: October 12, 2026
Vulnerability identifier: #VU154057
CSH Severity: Medium
CVSS v4: 6.9 [CVSS:4.0/AV:N/AC:L/AT:N/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:
Public exploit is available
Vulnerability details
The vulnerability allows a remote attacker to perform directory traversal attacks.
The vulnerability exists due to input validation error when processing directory traversal sequences within RAR5 link extraction on Java 8 environments. A remote attacker can send a specially crafted HTTP request and create arbitrary files on the system.
Affected software
junrar
Remediation
Install updates from vendor's website.
junrar - update to 8.1.2