# CVE-2026-105841: lrzsz: Lrzsz (consisting of lrz and lsz) is a cosmetically modified zmodem/ymodem/xmodem package built from the public-domai...

CVE-2026-105841 is fixed in lrzsz on 1 platform, first by RHSA-2026:83525, released October 16, 2026. It is not reported as exploited. Patch Radar priority: High.

- Web page: https://patchblox.com/security/cve/CVE-2026-105841
- Priority: High
- CVSS: 7.5 (Important)
- EPSS: 0.0094
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Oct 6, 2026

## Description

Lrzsz (consisting of lrz and lsz) is a cosmetically modified zmodem/ymodem/xmodem package built from the public-domain version of the rzsz package. Lrzsz was created to provide a working GNU copylefted Zmodem solution for Linux systems.  Security Fix(es):  * lrzsz: lrzsz: Arbitrary file overwrite via absolute path traversal in restricted mode (CVE-2026-105840)  * lrzsz: lrzsz: Arbitrary command execution via crafted file names in pipe mode (CVE-2026-105841)  Bug Fix(es) and Enhancement(s):  * lrzsz: segfault with -s [rhel-8.10.z] (JIRA:RHEL-282148)  For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | lrzsz Debian 14 | 0.13.1-1 | [DEBIAN-CVE-2026-105841](https://patchblox.com/security/data/fix/linux/debian-cve-2026-105841.md) | Oct 18, 2026 |
| Linux | lrzsz RHEL 10 | 0.12.20-69.el10_2 | [RHSA-2026:86056](https://patchblox.com/security/data/fix/linux/rhsa-2026-86056.md) | Oct 21, 2026 |
| Linux | lrzsz RHEL 8 | 0:0.12.20-46.el8_10 | [RHSA-2026:83525](https://patchblox.com/security/data/fix/linux/rhsa-2026-83525.md) | Oct 16, 2026 |
| Linux | lrzsz RHEL 9 | 0:0.12.20-58.el9_8 | [RHSA-2026:89755](https://patchblox.com/security/data/fix/linux/rhsa-2026-89755.md) | Oct 27, 2026 |
| Linux | lrzsz almalinux 10 | 0.12.20-69.el10_2 | [ALSA-2026:86056](https://patchblox.com/security/data/fix/linux/alsa-2026-86056.md) | Nov 7, 2026 |
| Linux | lrzsz almalinux 8 | 0.12.20-46.el8_10 | [ALSA-2026:83525](https://patchblox.com/security/data/fix/linux/alsa-2026-83525.md) | Nov 7, 2026 |
| Linux | lrzsz almalinux 9 | 0.12.20-58.el9_8 | [ALSA-2026:89755](https://patchblox.com/security/data/fix/linux/alsa-2026-89755.md) | Nov 7, 2026 |
| Linux | lrzsz ol 10 | 0:0.12.20-69.el10_2 | [ELSA-2026-86056](https://patchblox.com/security/data/fix/linux/elsa-2026-86056.md) | Nov 7, 2026 |
| Linux | lrzsz ol 8 | 0:0.12.20-46.el8_10 | [ELSA-2026-83525](https://patchblox.com/security/data/fix/linux/elsa-2026-83525.md) | Nov 7, 2026 |
| Linux | lrzsz ol 9 | 0:0.12.20-58.el9_8 | [ELSA-2026-89755](https://patchblox.com/security/data/fix/linux/elsa-2026-89755.md) | Nov 7, 2026 |
| Linux | lrzsz rocky 10 | 0:0.12.20-69.el10_2 | [RLSA-2026:86056](https://patchblox.com/security/data/fix/linux/rlsa-2026-86056.md) | Nov 7, 2026 |
| Linux | lrzsz rocky 8 | 0:0.12.20-46.el8_10 | [RLSA-2026:83525](https://patchblox.com/security/data/fix/linux/rlsa-2026-83525.md) | Nov 7, 2026 |
| Linux | lrzsz rocky 9 | 0:0.12.20-58.el9_8 | [RLSA-2026:89755](https://patchblox.com/security/data/fix/linux/rlsa-2026-89755.md) | Nov 7, 2026 |

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Data as of 2026-11-09T19:38:12Z UTC. Source: Patchblox Patch Radar (https://patchblox.com/security/patch-radar). Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo

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