CVE catalog
CVE-2026-105841
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 u
- Severity
- High · CVSS 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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X - Published
- Updated
- Source
- [NVD] · [CVE record]
- EPSS
- 0.94% · Oct 25, 2026
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.
Vulnerable and fixed packages
Distribution-reported package versions and fixes. These do not depend on matching against the OpenFactory package catalog.
| Distribution | Package | Release | Version | Status |
|---|---|---|---|---|
| Debian | lrzsz | sid | 0.13.1-1 | fixed |
| Debian | lrzsz | forky | 0.13.1-1 | fixed |
| Debian | lrzsz | trixie | 0.12.21rc-0.2 | vulnerable |
| Debian | lrzsz | bookworm | 0.12.21-10 | vulnerable |
Fixed-version evidence
| Distribution | Package | Type | Release | Fixed version | Urgency | Origin | Bugs |
|---|---|---|---|---|---|---|---|
| Debian | lrzsz | source | sid | 0.13.1-1 | not yet assigned | Not reported | [1150240] |
| Debian | lrzsz | source | forky | 0.13.1-1 | not yet assigned | Not reported | [1150240] |
| Debian | lrzsz | source | trixie | (unfixed) | not yet assigned | Not reported | [1150240] |
| Debian | lrzsz | source | bookworm | (unfixed) | not yet assigned | Not reported | [1150240] |
Notes
[trixie] lrzsz: Minor issue
OpenFactory catalog packages
[Debian 12 (Bookworm)]
- [lrzsz]Affected
Details (2)
0.12.21-10· arm64 · bookwormAffected
nvd · lrzsz · debian · bookworm; nvd · lrzsz · debian · 12
0.12.21-10+b1· amd64 · bookwormAffected
nvd · lrzsz · debian · bookworm; nvd · lrzsz · debian · 12
[Debian 13 (Trixie)]
- [lrzsz]Affected
Details (2)
0.12.21rc-0.2· amd64 · trixieAffected
nvd · lrzsz · debian · 13
0.12.21rc-0.2· arm64 · trixieAffected
nvd · lrzsz · debian · 13
Observed:
References
- [https://ftp.suse.com/pub/projects/security/csaf/rhsa-2026_83525.json]
- [https://nvd.nist.gov/vuln/detail/CVE-2026-105841]
- [https://osv.dev/vulnerability/DEBIAN-CVE-2026-105841]
- [https://security-tracker.debian.org/tracker/CVE-2026-105841]
- [https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-105841.json]
- [https://wid.cert-bund.de/.well-known/csaf/white/2026/wid-sec-w-2026-3978.json]
[CERT-Bund public advisories] · [Debian Security Tracker] · [FIRST EPSS] · [National Vulnerability Database (NVD)] · [OSV Package Vulnerability Database] · [Red Hat security advisories and VEX] · [SUSE security advisories and VEX]