CVE-2026-105840
lrzsz before 0.13.0 Path Traversal via lrz Restricted Mode checkpath()
CVSS Score
7.5
EPSS Score
0.0%
EPSS Percentile
0th
lrzsz before 0.13.0 contains a path traversal vulnerability in the lrz receive utility's restricted mode that allows malicious ZMODEM senders to write files outside the current directory using absolute pathnames. Because checkpath() in src/lrz.c only rejects '../' sequences unless built with --enable-pubdir, attackers can send files named with absolute paths to overwrite any file writable by the receiving user.
| CWE | CWE-22 |
| Vendor | uwe ohse |
| Product | lrzsz |
| Published | Oct 6, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H Attack Vector
Network
Attack Complexity
High
Privileges Required
None
User Interaction
Required
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High
Affected Versions
Uwe Ohse / lrzsz
0 < 0.13.0
References
Credits
Tristan Madani