CVE-2026-105840 lrzsz - Path Traversal

lrzsz before 0.13.0 contains a path traversal vulnerability caused by insufficient path validation in the lrz receive utility's restricted mode, letting malicious ZMODEM senders write files outside the current directory using absolute pathnames, exploit requires attacker to send crafted files.

CVSS base score 7.5 /10
High
CISA KEV
Not listed
Public exploit
None known
Authentication
Not required
EPSS
0.31% chance of exploitation in 30 days
View the NVD record ↗

Details

Type
Path Traversal
Impact
Data Tampering
CVSS vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
Published
6 October 2026
Updated
15 October 2026
Weakness
CWE-22

Vendor fix

Update to version 0.13.0 or later.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

References

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