Description
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.
Published: 2026-10-06
Score: 7.7 High
EPSS: n/a
KEV: No
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Remediation

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Tracking

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History

Tue, 06 Oct 2026 13:45:00 +0000

Type Values Removed Values Added
Description 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.
Title lrzsz before 0.13.0 Path Traversal via lrz Restricted Mode checkpath()
First Time appeared Lrzsz Project
Lrzsz Project lrzsz
Weaknesses CWE-22
CPEs cpe:2.3:a:lrzsz_project:lrzsz:*:*:*:*:*:*:*:*
Vendors & Products Lrzsz Project
Lrzsz Project lrzsz
References
Metrics cvssV3_1

{'score': 7.5, 'vector': 'CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H'}

cvssV4_0

{'score': 7.7, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N'}

Subscriptions

Lrzsz Project Lrzsz
cve-icon MITRE

Status: PUBLISHED

Assigner: VulnCheck

Published:

Updated: 2026-10-06T13:35:46.072Z

Reserved: 2026-10-05T22:00:10.842Z

Link: CVE-2026-105840

cve-icon Vulnrichment

No data.

cve-icon NVD

No data.

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.

Weaknesses
  • CWE-22

    Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')