RHEL 10 : php8.4 (RHSA-2026:22649)

high Nessus Plugin ID 319547

Synopsis

The remote Red Hat host is missing one or more security updates for php8.4.

Description

The remote Redhat Enterprise Linux 10 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2026:22649 advisory.

PHP is an HTML-embedded scripting language. PHP attempts to make it easy for developers to write dynamically generated web pages. PHP also offers built-in database integration for several commercial and non-commercial database management systems, so writing a database-enabled webpage with PHP is fairly simple. The most common use of PHP coding is probably as a replacement for CGI scripts.

Security Fix(es):

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

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

* php: denial of service via DOMNode::C14N() (CVE-2026-7263)

* php: global buffer over-read in mb_convert_encoding() with attacker-supplied encoding (CVE-2026-6104)

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 php8.4 package based on the guidance in RHSA-2026:22649.

Plugin Details

Severity: High

ID: 319547

File Name: redhat-RHSA-2026-22649.nasl

Version: 1.1

Type: Local

Agent: unix

Family: Red Hat Local Security Checks

Published: 6/6/2026

Updated: 6/6/2026

Supported Sensors: Nessus Agent, Continuous Assessment, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 6.0

Vendor

Vendor Severity: Important

CVSS v2

Risk Factor: High

Base Score: 9.4

Temporal Score: 7.4

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

CVSS Score Source: CVE-2026-6104

CVSS v3

Risk Factor: Critical

Base Score: 9.1

Temporal Score: 8.2

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

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

CVSS v4

Risk Factor: High

Base Score: 8.8

Threat Score: 7.3

Threat Vector: CVSS:4.0/E:P

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

CVSS Score Source: CVE-2026-6735

Vulnerability Information

CPE: p-cpe:/a:redhat:enterprise_linux:php8.4-process, p-cpe:/a:redhat:enterprise_linux:php8.4-snmp, p-cpe:/a:redhat:enterprise_linux:php8.4, p-cpe:/a:redhat:enterprise_linux:php8.4-bcmath, p-cpe:/a:redhat:enterprise_linux:php8.4-cli, p-cpe:/a:redhat:enterprise_linux:php8.4-gd, p-cpe:/a:redhat:enterprise_linux:php8.4-mysqlnd, p-cpe:/a:redhat:enterprise_linux:php8.4-pdo, p-cpe:/a:redhat:enterprise_linux:php8.4-common, p-cpe:/a:redhat:enterprise_linux:php8.4-mbstring, p-cpe:/a:redhat:enterprise_linux:php8.4-embedded, p-cpe:/a:redhat:enterprise_linux:php8.4-devel, p-cpe:/a:redhat:enterprise_linux:php8.4-gmp, p-cpe:/a:redhat:enterprise_linux:php8.4-ldap, p-cpe:/a:redhat:enterprise_linux:php8.4-dba, p-cpe:/a:redhat:enterprise_linux:php8.4-fpm, p-cpe:/a:redhat:enterprise_linux:php8.4-pgsql, p-cpe:/a:redhat:enterprise_linux:php8.4-ffi, p-cpe:/a:redhat:enterprise_linux:php8.4-opcache, p-cpe:/a:redhat:enterprise_linux:php8.4-soap, p-cpe:/a:redhat:enterprise_linux:php8.4-xml, p-cpe:/a:redhat:enterprise_linux:php8.4-dbg, p-cpe:/a:redhat:enterprise_linux:php8.4-intl, p-cpe:/a:redhat:enterprise_linux:php8.4-enchant, p-cpe:/a:redhat:enterprise_linux:php8.4-odbc, cpe:/o:redhat:enterprise_linux:10.2

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: 6/2/2026

Vulnerability Publication Date: 5/6/2026

Reference Information

CVE: CVE-2026-6104, CVE-2026-6735, CVE-2026-7258, CVE-2026-7262, CVE-2026-7263, CVE-2026-7568

CWE: 125, 190, 476, 79, 835, 839

RHSA: 2026:22649

Detections

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