Lrzsz Before 0.13.0 Path Traversal Via Lrz Restricted Mode Checkpath

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Lrzsz Before 0.13.0 Path Traversal Via Lrz Restricted Mode Checkpath

www.vulncheck.com • October 6, 2026

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CWE-22 Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

lrzsz 0.13.0 security changes

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Lrzsz Vulnerabilities: OS Command Injection and Path Traversal Risks Two vulnerabilities have been identified in lrzsz versions prior to 0.13.0. The first, a command injection flaw (CWE-78), allows attackers to execute arbitrary OS commands via the lrz pipe mode. The second, a path traversal vulnerability (CWE-22), enables unauthorized file access through the lrz restricted mode checkpath. Both vulnerabilities could potentially be exploited by attackers to compromise systems using lrzsz. Security updates have been released to address these issues. Users are urged to upgrade to version 0.13.0 or later to mitigate risks. No has been reported as of now, but the vulnerabilities are significant enough to warrant immediate attention from system administrators. 58

Extracted Entities

CWE Weaknesses (1)

CWE-22 - Path Traversal

Vulnerabilities (1)