CVE-2026-105840CWE-22path-traversal

CVE-2026-105840

High · published October 6, 2026

CVSS v3.1
7.5
EPSS
0%
Percentile
23.0
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
7.5 · HIGH
Vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
CVSS v4.0
7.7 · 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
EPSS
0.00313 · 23.0th percentile
Weakness
CWE-22 · Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
Published
2026-10-06T18:17Z
References (3)
https://ohse.de/uwe/software/lrzsz.html · [email protected]https://ohse.de/uwe/software/lrzsz/NEWS-0.13.0.html · [email protected]https://www.vulncheck.com/advisories/lrzsz-before-0.13.0-path-traversal-via-lrz-restricted-mode-checkpath · [email protected]
EPSS history
Timeline
  • 08 OCT 03:27Z
    EPSS moved — → 0%
    epss
  • 06 OCT 13:35Z
    lrzsz before 0.13.0 Path Traversal via lrz Restricted Mode checkpath()
    cvelistv5