OS Command Injection The advisory has been revoked - it doesn't affect any version of package lrzsz (opens in a new tab)
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-RHEL10-LRZSZ-20549426
- published7 Oct 2026
- disclosed6 Oct 2026
Introduced: 6 Oct 2026
NewCVE-2026-105841 (opens in a new tab)Amendment
The Red Hat security team deemed this advisory irrelevant for RHEL:10.
NVD Description
Note: Versions mentioned in the description apply only to the upstream lrzsz package and not the lrzsz package as distributed by RHEL.
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.
References
- https://bugzilla.redhat.com/show_bug.cgi?id=2546595
- https://access.redhat.com/security/cve/CVE-2026-105841
- https://access.redhat.com/errata/RHSA-2026:86056
- https://ohse.de/uwe/software/lrzsz.html
- https://ohse.de/uwe/software/lrzsz/NEWS-0.13.0.html
- https://www.vulncheck.com/advisories/lrzsz-before-0.13.0-os-command-injection-via-lrz-pipe-mode