CVE-2026-79655
Fixed in a distro release EPSS <1%CVSS 7.8
A flaw was found in sos clean, a utility within the sos package. This vulnerability allows a local attacker to perform arbitrary file creation or overwrite. By crafting a malicious tar archive, an attacker can exploit a path traversal issue during tar extraction, where symlink and hardlink targets are not properly validated. This enables the attacker to write files to arbitrary locations on the system with the privileges of the sos clean process, which often runs as root.
Products: Red Hat Enterprise Linux 10, Red Hat Enterprise Linux 6, Red Hat Enterprise Linux 7, Red Hat Enterprise Linux 8, Red Hat Enterprise Linux 9
Distro releases
| Release | Package | Fixed in |
|---|---|---|
| Debian 13 | sos | no fix |
| Debian 14 | sos | 4.12.0-2 |
| Ubuntu 22.04 LTS | sosreport | no fix |
| Ubuntu 24.04 LTS | sosreport | no fix |
| Ubuntu 26.04 LTS | sos | no fix |
| Ubuntu 26.10 | sos | no fix |
| Ubuntu Pro 14.04 LTS | sosreport | no fix |
| Ubuntu Pro 16.04 LTS | sosreport | no fix |
| Ubuntu Pro 18.04 LTS | sosreport | no fix |
| Ubuntu Pro 20.04 LTS | sosreport | no fix |