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RHEL 10 : php8.4 (RHSA-2026:56969)

critical Nessus Plugin ID 338168

Synopsis

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

Description

The remote Redhat Enterprise Linux 10 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2026:56969 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: ext-pgsql: PHP: SQL injection via improper backslash escaping (CVE-2026-17543)

 * php: PHP: Arbitrary code execution via out-of-bounds write in bccomp() (CVE-2026-17544)

 Bug Fix(es) and Enhancement(s):

 * Rebase PHP to 8.4.24 for CVE-2026-17543 and CVE-2026-7260 and CVE-2026-17544 in 10.2.z (JIRA:RHEL-223949)

 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 affected packages.

See Also

https://access.redhat.com/errata/RHSA-2026:56969

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

https://bugzilla.redhat.com/show_bug.cgi?id=2509254

https://bugzilla.redhat.com/show_bug.cgi?id=2509256

https://issues.redhat.com/browse/RHEL-223949

http://www.nessus.org/u?7e8e6793

Plugin Details

Severity: Critical

ID: 338168

File Name: redhat-RHSA-2026-56969.nasl

Version: 1.1

Type: Local

Agent: unix

Published: 8/19/2026

Updated: 8/19/2026

Supported Sensors: Nessus Agent, Continuous Assessment, Nessus

Risk Information

VPR

Risk Factor: High

Score: 7.6

Percentile: 98.37

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-2026-17544

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: 9.3

Threat Score: 8.9

Threat Vector: CVSS:4.0/E:P

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

Vulnerability Information

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

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: 8/19/2026

Vulnerability Publication Date: 7/28/2026

Reference Information

CVE: CVE-2026-17543, CVE-2026-17544

CWE: 787, 89

RHSA: 2026:56969