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


Severity

Recommended
0.0
high
0
10

Based on Rocky Linux security rating.

Threat Intelligence

EPSS
0.95% (60th percentile)

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  • Snyk IDSNYK-ROCKY8-LRZSZDEBUGSOURCE-21153655
  • published17 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 Rocky-Linux:8 lrzsz-debugsource to version 0:0.12.20-46.el8_10 or higher.
This issue was patched in RLSA-2026:83525.

NVD Description

Note: Versions mentioned in the description apply only to the upstream lrzsz-debugsource package and not the lrzsz-debugsource package as distributed by Rocky-Linux. See How to fix? for Rocky-Linux: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