RHEL 8 : pcs (RHSA-2026:0930)

high Nessus Plugin ID 295028

Synopsis

The remote Red Hat host is missing one or more security updates for pcs.

Description

The remote Redhat Enterprise Linux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2026:0930 advisory.

The pcs packages provide a command-line configuration system for the Pacemaker and Corosync utilities.

Security Fix(es):

* tornado: Tornado Quadratic DoS via Repeated Header Coalescing (CVE-2025-67725)

* tornado: Tornado Quadratic DoS via Crafted Multipart Parameters (CVE-2025-67726)

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 pcs package based on the guidance in RHSA-2026:0930.

Plugin Details

Severity: High

ID: 295028

File Name: redhat-RHSA-2026-0930.nasl

Version: 1.1

Type: local

Agent: unix

Family: Red Hat Local Security Checks

Published: 1/22/2026

Updated: 1/22/2026

Supported Sensors: Nessus Agent, Continuous Assessment, Nessus

Risk Information

VPR

Risk Factor: Low

Score: 3.6

Vendor

Vendor Severity: Moderate

CVSS v2

Risk Factor: High

Base Score: 7.8

Temporal Score: 5.8

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

CVSS Score Source: CVE-2025-67726

CVSS v3

Risk Factor: High

Base Score: 7.5

Temporal Score: 6.5

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

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

Vulnerability Information

CPE: cpe:/o:redhat:rhel_eus:8.10, p-cpe:/a:redhat:enterprise_linux:pcs, cpe:/o:redhat:enterprise_linux:8, p-cpe:/a:redhat:enterprise_linux:pcs-snmp

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: 1/21/2026

Vulnerability Publication Date: 12/12/2025

Reference Information

CVE: CVE-2025-67725, CVE-2025-67726

CWE: 400, 834

RHSA: 2026:0930

Detections

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