Description
A flaw was found in cockpit-files. A low-privileged local user can exploit this vulnerability by crafting a directory containing a symbolic link (symlink) and then using the privileged "Paste as owner" function. This allows for arbitrary file ownership changes outside the intended pasted directory, leading to a compromise of data integrity. In some cases, this could also lead to reduced confidentiality if the new ownership grants unauthorized read access. Exploitation requires user interaction to select a non-original owner during the paste operation.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| Red Hat | Red Hat Enterprise Linux 10 | — | — |
| Red Hat | Red Hat Enterprise Linux 9 | — | — |
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 14 | cockpit-files | 45-1 | — |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 26.10 | cockpit-files | No fix yet | — |
| Ubuntu 26.04 LTS | cockpit-files | No fix yet | — |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 9 | cockpit-files | 36.1-1.el9_8 | RHSA-2026:84595 |
AlmaLinux
Errata ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| AlmaLinux 10 | cockpit-files | 36.1-1.el10_2 | ALSA-2026:95570 |
| AlmaLinux 9 | cockpit-files | 36.1-1.el9_8 | ALSA-2026:84595 |
Rocky Linux
Errata ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Rocky Linux 10 | cockpit-files | 36.1-1.el10_2 | RLSA-2026:95570 |
| Rocky Linux 9 | cockpit-files | 36.1-1.el9_8 | RLSA-2026:84595 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | cockpit-files | 44-1.1 | openSUSE-SU-2026:11844-1 |
Oracle Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Oracle Linux 10 | cockpit-files | 36.1-1.el10_2 | ELSA-2026-95570 |
| Oracle Linux 9 | cockpit-files | 36.1-1.el9_8 | ELSA-2026-84595 |
Advisories 9
- WID-SEC-2026-4376 Red Hat Enterprise Linux (cockpit-files): Mehrere Schwachstellen ermöglichen Manipulation von Dateien BSI CERT-Bund (WID) · Nov 11, 2026
- RLSA-2026:95570 Moderate: cockpit-files security update Rocky Linux Security Advisories · Nov 6, 2026
- ALSA-2026:95570 Moderate: cockpit-files security update AlmaLinux Security Advisories · Nov 6, 2026
- ELSA-2026-95570 Moderate: cockpit-files security update (Oracle Linux 10) Oracle Linux Security Advisories (ELSA) · Nov 5, 2026
- ALSA-2026:84595 Moderate: cockpit-files security update AlmaLinux Security Advisories · Oct 29, 2026
- RLSA-2026:84595 Moderate: cockpit-files security update Rocky Linux Security Advisories · Oct 20, 2026
- RHSA-2026:84595 Red Hat Security Advisory: cockpit-files security update Red Hat Security Advisories (RHSA) · Oct 20, 2026
- ELSA-2026-84595 Moderate: cockpit-files security update (Oracle Linux 9) Oracle Linux Security Advisories (ELSA) · Oct 19, 2026
- openSUSE-SU-2026:11844-1 cockpit-files-44-1.1 on GA media SUSE / openSUSE Security Updates · Sep 23, 2026
References
- RHSA-2026:84595 vendor-advisory
- RHSA-2026:95570 vendor-advisory
- RHSA-2026:98458 vendor-advisory
- RHSA-2026:98566 vendor-advisory
- https://access.redhat.com/security/cve/CVE-2026-91202 vdb-entry
- RHBZ#2465834 issue-tracking