OS Command Injection Affecting lrzsz package, versions <0:0.12.20-46.el8_10


Severity

Recommended
0.0
high
0
10

Based on Oracle Linux security rating.

Threat Intelligence

EPSS
0.95% (60th percentile)

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  • Snyk IDSNYK-ORACLE8-LRZSZ-21137058
  • published16 Oct 2026
  • disclosed6 Oct 2026

Introduced: 6 Oct 2026

NewCVE-2026-105841  (opens in a new tab)
CWE-78  (opens in a new tab)

How to fix?

Upgrade Oracle:8 lrzsz to version 0:0.12.20-46.el8_10 or higher.
This issue was patched in ELSA-2026-83525.

NVD Description

Note: Versions mentioned in the description apply only to the upstream lrzsz package and not the lrzsz package as distributed by Oracle. See How to fix? for Oracle:8 relevant fixed versions and status.

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.

CVSS Base Scores

version 3.1