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RHEL 9 : cockpit-files (RHSA-2026:84595)

medium Nessus Plugin ID 367221

Synopsis

The remote Red Hat host is missing one or more security updates for cockpit-files.

Description

The remote Redhat Enterprise Linux 9 host has a package installed that is affected by multiple vulnerabilities as referenced in the RHSA-2026:84595 advisory.

 A filesystem browser for Cockpit

 Security Fix(es):

 * cockpit-files: cockpit-files: Arbitrary file ownership change via symlink following in privileged paste (CVE-2026-91202)

 * cockpit-files: cockpit-files: Local attacker can hijack file ownership via symlink race (CVE-2026-91205)

 For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

Tenable has extracted the preceding description block directly from the Red Hat Enterprise Linux security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

Solution

Update the RHEL cockpit-files package based on the guidance in RHSA-2026:84595.

See Also

https://access.redhat.com/errata/RHSA-2026:84595

https://access.redhat.com/security/updates/classification/#moderate

https://bugzilla.redhat.com/show_bug.cgi?id=2465834

https://bugzilla.redhat.com/show_bug.cgi?id=2466442

http://www.nessus.org/u?8fe326e1

Plugin Details

Severity: Medium

ID: 367221

File Name: redhat-RHSA-2026-84595.nasl

Version: 1.1

Type: Local

Agent: unix

Published: 10/19/2026

Updated: 10/19/2026

Supported Sensors: Nessus Agent, Continuous Assessment, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 4.3

Percentile: 53.42

Vendor

Vendor Severity: Moderate

CVSS v2

Risk Factor: Medium

Base Score: 5.7

Temporal Score: 4.2

Vector: CVSS2#AV:L/AC:L/Au:S/C:P/I:C/A:P

CVSS Score Source: CVE-2026-91202

CVSS v3

Risk Factor: Medium

Base Score: 6.1

Temporal Score: 5.3

Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:R/S:U/C:L/I:H/A:L

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

Vulnerability Information

CPE: cpe:/o:redhat:enterprise_linux:9, cpe:/o:redhat:rhel_eus:9.8, p-cpe:/a:redhat:enterprise_linux:cockpit-files

Required KB Items: Host/local_checks_enabled, Host/RedHat/release, Host/RedHat/rpm-list, Host/cpu

Exploit Ease: No known exploits are available

Patch Publication Date: 10/19/2026

Vulnerability Publication Date: 9/18/2026

Reference Information

CVE: CVE-2026-91202, CVE-2026-91205

CWE: 363, 61

RHSA: 2026:84595