CVE-2026-79655

high

Description

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.

References

https://github.com/sosreport/sos/pull/4461

https://github.com/sosreport/sos/issues/4460

https://bugzilla.redhat.com/show_bug.cgi?id=2523363

https://access.redhat.com/security/cve/CVE-2026-79655

Details

Source: Mitre, NVD

Published: 2026-08-25

Updated: 2026-08-25

Risk Information

CVSS v2

Base Score: 7.2

Vector: CVSS2#AV:L/AC:L/Au:N/C:C/I:C/A:C

Severity: High

CVSS v3

Base Score: 7.8

Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Severity: High

EPSS

EPSS: 0.00142