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CVE-2026-19816

PackageKit: dnf5 backend ignores SIMULATE on RepoRemove PUBLISHED

Description (CNA)

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.

Affected (CNA)

Vendor / productVersions
Not supplied / Not suppliedaffected 1.3.4 before 1.4.0
Fedora / Fedoraaffected 1.3.4 before 1.4.0
Red Hat / Red Hat Enterprise Linux 9unaffected
Red Hat / Red Hat Enterprise Linux 10unaffected
Red Hat / Red Hat Enterprise Linux 6unaffected
Red Hat / Red Hat Enterprise Linux 7unaffected
Red Hat / Red Hat Enterprise Linux 7unaffected
Red Hat / Red Hat Enterprise Linux 8unaffected

CWE

CWE-863

References

ADP enrichment

CISA-ADP

No English description supplied.

No references supplied.