CVE-2026-105840
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
Summary
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.
Affected Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Uwe Ohse | lrzsz | 0 < 0.13.0 | affected |
Weaknesses
- CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
References
- https://ohse.de/uwe/software/lrzsz/NEWS-0.13.0.html
- https://ohse.de/uwe/software/lrzsz.html
- https://www.vulncheck.com/advisories/lrzsz-before-0.13.0-path-traversal-via-lrz-restricted-mode-checkpath
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