Improper Neutralization of Argument Delimiters in a Command in PackageKit - #VU148897
Published: September 10, 2026
Vulnerability identifier: #VU148897
CSH Severity: Low
CVSS v4: 8.5 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]
CVE-ID: N/A
CWE-ID: CWE-88
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a local user to execute arbitrary code as root.
The vulnerability exists due to improper neutralization of argument delimiters in the PackageKit spawn dispatcher command stream when processing SearchNames D-Bus requests. A local user can send a SearchNames value containing control characters to inject a privileged backend command and execute arbitrary code as root.
Exploitation requires a reused backend helper and a Python-dispatcher spawn backend, such as eopkg, pisi, entropy, or portage.
Affected software
PackageKit
Remediation
Install security update from vendor's website.
PackageKit - update to 1.4.0