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RHEL 8 : php:7.4 (RHSA-2026:34354)

critical Nessus Plugin ID 324604

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Synopsis

The remote Red Hat host is missing one or more security updates for php:7.4.

Description

The remote Redhat Enterprise Linux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2026:34354 advisory.

 PHP is an HTML-embedded scripting language commonly used with the Apache HTTP Server.

 Security Fix(es):

 * php: php-soap: php-src: PHP SOAP extension: Remote Code Execution via use-after-free vulnerability (CVE-2026-6722)

 * PHP: PHP: Denial of Service via improper handling of signed characters in ctype functions (CVE-2026-7258)

 * PHP: PHP-FPM: PHP-FPM: Cross-Site Scripting vulnerability via improper URL sanitation (CVE-2026-6735)

 * PHP: PHP SoapServer: Memory corruption and information disclosure via incorrect persistence handling (CVE-2026-7261)

 * php: NULL pointer dereference in SOAP apache:Map decoder with missing <value> (CVE-2026-7262)

 * php: signed integer overflow in metaphone() (CVE-2026-7568)

 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 php:7.4 package based on the guidance in RHSA-2026:34354.

See Also

https://access.redhat.com/errata/RHSA-2026:34354

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

https://bugzilla.redhat.com/show_bug.cgi?id=2468560

https://bugzilla.redhat.com/show_bug.cgi?id=2468561

https://bugzilla.redhat.com/show_bug.cgi?id=2468562

https://bugzilla.redhat.com/show_bug.cgi?id=2468563

https://bugzilla.redhat.com/show_bug.cgi?id=2468565

https://bugzilla.redhat.com/show_bug.cgi?id=2468566

https://issues.redhat.com/browse/RHEL-181020

http://www.nessus.org/u?3fa97d17

Plugin Details

Severity: Critical

ID: 324604

File Name: redhat-RHSA-2026-34354.nasl

Version: 1.1

Type: Local

Agent: unix

Published: 7/1/2026

Updated: 7/1/2026

Supported Sensors: Agentless Assessment, Continuous Assessment, Frictionless Assessment Agent, Frictionless Assessment AWS, Frictionless Assessment Azure, Nessus Agent, Tenable Cloud Security, Tenable Self-Hosted Container Security, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 6.9

Percentile: 96.92

Vendor

Vendor Severity: Important

CVSS v2

Risk Factor: Critical

Base Score: 10

Temporal Score: 7.8

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

CVSS Score Source: CVE-2026-7261

CVSS v3

Risk Factor: Critical

Base Score: 9.8

Temporal Score: 8.8

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

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

CVSS v4

Risk Factor: Critical

Base Score: 9.5

Threat Score: 9

Threat Vector: CVSS:4.0/E:P

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

CVSS Score Source: CVE-2026-6722

Vulnerability Information

CPE: cpe:/o:redhat:enterprise_linux:8, p-cpe:/a:redhat:enterprise_linux:php, p-cpe:/a:redhat:enterprise_linux:php-devel, p-cpe:/a:redhat:enterprise_linux:php-ldap, p-cpe:/a:redhat:enterprise_linux:php-odbc, p-cpe:/a:redhat:enterprise_linux:php-pgsql, p-cpe:/a:redhat:enterprise_linux:php-gd, p-cpe:/a:redhat:enterprise_linux:php-mbstring, p-cpe:/a:redhat:enterprise_linux:php-pear, p-cpe:/a:redhat:enterprise_linux:php-snmp, p-cpe:/a:redhat:enterprise_linux:php-xmlrpc, p-cpe:/a:redhat:enterprise_linux:php-bcmath, p-cpe:/a:redhat:enterprise_linux:php-cli, p-cpe:/a:redhat:enterprise_linux:php-common, p-cpe:/a:redhat:enterprise_linux:php-dba, p-cpe:/a:redhat:enterprise_linux:php-pdo, p-cpe:/a:redhat:enterprise_linux:php-soap, p-cpe:/a:redhat:enterprise_linux:php-xml, p-cpe:/a:redhat:enterprise_linux:php-embedded, p-cpe:/a:redhat:enterprise_linux:php-enchant, p-cpe:/a:redhat:enterprise_linux:php-fpm, p-cpe:/a:redhat:enterprise_linux:php-intl, p-cpe:/a:redhat:enterprise_linux:php-process, p-cpe:/a:redhat:enterprise_linux:php-mysqlnd, p-cpe:/a:redhat:enterprise_linux:php-pecl-xdebug, p-cpe:/a:redhat:enterprise_linux:apcu-panel, p-cpe:/a:redhat:enterprise_linux:libzip, p-cpe:/a:redhat:enterprise_linux:libzip-devel, p-cpe:/a:redhat:enterprise_linux:libzip-tools, p-cpe:/a:redhat:enterprise_linux:php-dbg, p-cpe:/a:redhat:enterprise_linux:php-gmp, p-cpe:/a:redhat:enterprise_linux:php-json, p-cpe:/a:redhat:enterprise_linux:php-opcache, p-cpe:/a:redhat:enterprise_linux:php-pecl-apcu, p-cpe:/a:redhat:enterprise_linux:php-pecl-apcu-devel, p-cpe:/a:redhat:enterprise_linux:php-pecl-rrd, p-cpe:/a:redhat:enterprise_linux:php-pecl-zip, p-cpe:/a:redhat:enterprise_linux:php-ffi, cpe:/o:redhat:rhel_eus:8.10

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

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 7/1/2026

Vulnerability Publication Date: 5/6/2026

Reference Information

CVE: CVE-2026-6722, CVE-2026-6735, CVE-2026-7258, CVE-2026-7261, CVE-2026-7262, CVE-2026-7568

CWE: 190, 476, 79, 825, 839

RHSA: 2026:34354