CVE-2026-19816 PackageKit - Broken Access Control

PackageKit with dnf5 backend contains a broken access control vulnerability caused by improper polkit authorization check skipping for SIMULATE flag in RepoRemove handler, letting unprivileged local users uninstall packages, exploit requires local access.

CVSS base score 7.1 /10
High
CISA KEV
Not listed
Public exploit
None known
Authentication
Required
EPSS
0.10% chance of exploitation in 30 days
View the NVD record ↗

Details

Type
Broken Access Control
Impact
Broken Access Control
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H
Published
14 September 2026
Updated
15 October 2026
Weakness
CWE-863

Vendor fix

Update to the latest PackageKit version with dnf5 backend that fixes this issue.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

References

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