CVE-2026-105840: Uwe Ohse Lrzsz

High severity, CVSS 7.5. EPSS: 0.3% chance of exploitation in the next 30 days.

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.

Affected products

• Uwe Ohse Lrzsz: before 0.13.0 (fixed in 0.13.0)

Published 2026-10-06. Last modified 2026-10-09.