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AlmaLinux 9 : xdg-dbus-proxy (ALSA-2026:90522)

high Nessus Plugin ID 372657

Synopsis

The remote AlmaLinux host is missing a security update.

Description

The remote AlmaLinux 9 host has a package installed that is affected by a vulnerability as referenced in the ALSA-2026:90522 advisory.

 * xdg-dbus-proxy: xdg-dbus-proxy: message filtering bypass via reply serial allows sandbox escape (CVE-2026-94422)

Tenable has extracted the preceding description block directly from the AlmaLinux security advisory.

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

Solution

Update the affected xdg-dbus-proxy package.

See Also

https://access.redhat.com/errata/RHSA-2026:90522

https://errata.almalinux.org/9/ALSA-2026-90522.html

Plugin Details

Severity: High

ID: 372657

File Name: alma_linux_ALSA-2026-90522.nasl

Version: 1.1

Type: Local

Published: 10/27/2026

Updated: 10/27/2026

Supported Sensors: Nessus Agent, Continuous Assessment, Nessus

Risk Information

VPR

Risk Factor: High

Score: 7.6

Percentile: 98.24

CVSS v2

Risk Factor: Critical

Base Score: 10

Temporal Score: 7.4

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

CVSS Score Source: CVE-2026-94422

CVSS v3

Risk Factor: High

Base Score: 8.8

Temporal Score: 7.7

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

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

CVSS v4

Risk Factor: High

Base Score: 8.7

Threat Score: 6.3

Threat Vector: CVSS:4.0/E:U

Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

Vulnerability Information

CPE: cpe:/o:alma:linux:9, cpe:/o:alma:linux:9::appstream, cpe:/o:alma:linux:9::baseos, cpe:/o:alma:linux:9::crb, cpe:/o:alma:linux:9::highavailability, cpe:/o:alma:linux:9::nfv, cpe:/o:alma:linux:9::realtime, cpe:/o:alma:linux:9::resilientstorage, cpe:/o:alma:linux:9::sap, cpe:/o:alma:linux:9::sap_hana, cpe:/o:alma:linux:9::supplementary, p-cpe:/a:alma:linux:xdg-dbus-proxy

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

Exploit Ease: No known exploits are available

Patch Publication Date: 10/27/2026

Vulnerability Publication Date: 9/28/2026

Reference Information

CVE: CVE-2026-94422

CWE: 290

RHSA: 2026:90522