CVE-2026-19816

A flaw was found in PackageKit. PackageKit skips the polkit authorization check for transactions carrying the SIMULATE (dry-run) flag. In the dnf5 backend, the RepoRemove handler ignores that contract and always executes the real transaction because its guard is written as (role == REPO_REMOVE || !SIMULATE), which is always true for RepoRemove. An unprivileged local user can therefore perform a genuine package uninstall while claiming to simulate. This vulnerability only affects systems using PackageKit with the dnf5 backend.

CVSS v3 7.1 HIGH

7.1^/10

CVSS v3 : HIGH

Vector :

Exploitability : 1.8 / Impact : 5.2

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://bugzilla.redhat.com/show_bug.cgi?id=2515940
https://github.com/PackageKit/PackageKit/commit/33be77b3ecd3b566ca117358dc18c58c964e627b
https://github.com/PackageKit/PackageKit/security/advisories/GHSA-g5gf-h68q-gxc8

Configurations

No configuration.

History

No history.

Information

Published : 2026-09-14 20:16

Updated : 2026-09-15 19:17

NVD link : CVE-2026-19816

Mitre link : CVE-2026-19816

CVE.ORG link : CVE-2026-19816

JSON object : View

Products Affected

No product.

CWE

CWE-863

Incorrect Authorization

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