PT-2026-106726 · Uwe Ohse · Lrzsz

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CVE-2026-105841

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Published

2026-10-06

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Updated

2026-10-06

CVSS v3.1

7.5

High

VectorAV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
lrzsz before 0.13.0 contains an OS command injection vulnerability in the lrz receive utility's pipe mode that allows remote senders to execute commands by supplying crafted filenames. When lrz runs under a suffixed name such as lrztar, procheader() in src/lrz.c passes the unescaped ZMODEM/YMODEM filename to popen(), so shell metacharacters execute as the receiving user.

Fix

OS Command Injection

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Weakness Enumeration

Related Identifiers

CVE-2026-105841

Affected Products

Lrzsz