CVE-2026-19816 (GCVE-0-2026-19816)
Vulnerability from cvelistv5 – Published: 2026-09-14 20:05 – Updated: 2026-09-15 18:04
VLAI
EPSS
VEX
Title
PackageKit: dnf5 backend ignores SIMULATE on RepoRemove
Summary
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.
Severity
7.1 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-15 17:38 UTC
CWE
- CWE-863 - Incorrect Authorization
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://github.com/PackageKit/PackageKit/commit/3… | patch |
| https://github.com/PackageKit/PackageKit/security… | vendor-advisory |
| https://bugzilla.redhat.com/show_bug.cgi?id=2515940 | issue-tracking |
Impacted products
7 products
| Vendor | Product | Version | CPE status | |
|---|---|---|---|---|
|
Affected:
1.3.4 , < 1.4.0
(semver)
|
||||
| Fedora | Fedora |
Affected:
1.3.4 , < 1.4.0
(semver)
|
guessed | |
| Red Hat | Red Hat Enterprise Linux 9 |
cpe:/o:redhat:enterprise_linux:9
|
||
| Red Hat | Red Hat Enterprise Linux 10 |
cpe:/o:redhat:enterprise_linux:10
|
||
| Red Hat | Red Hat Enterprise Linux 6 |
cpe:/o:redhat:enterprise_linux:6
|
||
| Red Hat | Red Hat Enterprise Linux 7 |
cpe:/o:redhat:enterprise_linux:7
|
||
| Red Hat | Red Hat Enterprise Linux 8 |
cpe:/o:redhat:enterprise_linux:8
|
Date Public
2026-09-09 19:16
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