{"id":22489,"date":"2026-09-15T04:30:56","date_gmt":"2026-09-14T20:30:56","guid":{"rendered":"https:\/\/www.54iter.cn\/?vuln=cve-2026-19816"},"modified":"2026-09-15T04:30:56","modified_gmt":"2026-09-14T20:30:56","slug":"cve-2026-19816","status":"publish","type":"vuln","link":"https:\/\/www.54iter.cn\/?vuln=cve-2026-19816","title":{"rendered":"CVE-2026-19816 [HIGH] &#8211; A flaw was found in PackageKit. PackageKit skips the polkit authorization check for transa"},"content":{"rendered":"<p>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.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>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<\/p>\n","protected":false},"template":"","meta":[],"categories":[],"tags":[],"class_list":["post-22489","vuln","type-vuln","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/www.54iter.cn\/index.php?rest_route=\/wp\/v2\/vuln\/22489","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.54iter.cn\/index.php?rest_route=\/wp\/v2\/vuln"}],"about":[{"href":"https:\/\/www.54iter.cn\/index.php?rest_route=\/wp\/v2\/types\/vuln"}],"wp:attachment":[{"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=22489"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=22489"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=22489"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}