This page tracks the Debian fix status. The vulnerability itself is described on the main CVE page. View CVE-2026-105840 →
Categories
DEBIAN-CVE-2026-105840

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...

Original description

The description as published by the source.

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.

Source: OSV.dev (Open Source Vulnerabilities) OSV

Affected packages

Debian:12 lrzsz
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
Debian:13 lrzsz
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
Debian:14 lrzsz
[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0.12.21rc-5"}]}]

References

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