Detections
Analytics

Amazon Linux Unpatched Vulnerability : CVE-2026-109618

critical Nessus Plugin ID 372053

Synopsis

The remote Amazon Linux host has one or more packages installed with a vulnerability that the vendor indicates will not be patched.

Description

The remote Amazon Linux host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available.

 - PHP uses longjmp() for out-of-memory (OOM) errors to exit the current context and abort handling of the request. Some contexts may not properly account for this scenario and leave request memory in an uninitialized state before performing an allocation. The subsequent request cleanup procedure may read or branch on this memory. Multiple OOM strategies can consistently trigger this condition and lead to remote code execution (RCE). (CVE-2026-109618)

Note that Nessus relies on the presence of the package as reported by the vendor.

Solution

There is no known solution at this time.

See Also

https://explore.alas.aws.amazon.com/CVE-2026-109618.html

Plugin Details

Severity: Critical

ID: 372053

File Name: amazon_linux_unpatched_CVE_2026_109618.nasl

Version: 1.2

Type: Local

Agent: unix

Family: Misc.

Published: 10/26/2026

Updated: 10/27/2026

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

Risk Information

VPR

Risk Factor: Critical

Score: 9.4

Percentile: 99.83

CVSS v2

Risk Factor: Critical

Base Score: 10

Temporal Score: 10

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

CVSS Score Source: CVE-2026-109618

CVSS v3

Risk Factor: Critical

Base Score: 9.8

Temporal Score: 9.8

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:H/RL:U/RC:C

CVSS v4

Risk Factor: Critical

Base Score: 9.2

Threat Score: 9.2

Threat Vector: CVSS:4.0/E:A

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

Vulnerability Information

CPE: cpe:/o:amazon:linux:2023, cpe:/o:amazon:linux:2, p-cpe:/a:amazon:linux:php-bcmath, p-cpe:/a:amazon:linux:php-cli, p-cpe:/a:amazon:linux:php-common, p-cpe:/a:amazon:linux:php-dba, p-cpe:/a:amazon:linux:php-debuginfo, p-cpe:/a:amazon:linux:php-devel, p-cpe:/a:amazon:linux:php-embedded, p-cpe:/a:amazon:linux:php-enchant, p-cpe:/a:amazon:linux:php-fpm, p-cpe:/a:amazon:linux:php-gd, p-cpe:/a:amazon:linux:php-intl, p-cpe:/a:amazon:linux:php-ldap, p-cpe:/a:amazon:linux:php-mbstring, p-cpe:/a:amazon:linux:php-mysqlnd, p-cpe:/a:amazon:linux:php-odbc, p-cpe:/a:amazon:linux:php-pdo, p-cpe:/a:amazon:linux:php-pgsql, p-cpe:/a:amazon:linux:php-process, p-cpe:/a:amazon:linux:php-pspell, p-cpe:/a:amazon:linux:php-recode, p-cpe:/a:amazon:linux:php-snmp, p-cpe:/a:amazon:linux:php-soap, p-cpe:/a:amazon:linux:php-xml, p-cpe:/a:amazon:linux:php-xmlrpc, p-cpe:/a:amazon:linux:php8.1-bcmath-debuginfo, p-cpe:/a:amazon:linux:php8.1-bcmath, p-cpe:/a:amazon:linux:php8.1-cli-debuginfo, p-cpe:/a:amazon:linux:php8.1-cli, p-cpe:/a:amazon:linux:php8.1-common-debuginfo, p-cpe:/a:amazon:linux:php8.1-common, p-cpe:/a:amazon:linux:php8.1-dba-debuginfo, p-cpe:/a:amazon:linux:php8.1-dba, p-cpe:/a:amazon:linux:php8.1-dbg-debuginfo, p-cpe:/a:amazon:linux:php8.1-dbg, p-cpe:/a:amazon:linux:php8.1-debuginfo, p-cpe:/a:amazon:linux:php8.1-debugsource, p-cpe:/a:amazon:linux:php8.1-devel, p-cpe:/a:amazon:linux:php8.1-embedded-debuginfo, p-cpe:/a:amazon:linux:php8.1-embedded, p-cpe:/a:amazon:linux:php8.1-enchant-debuginfo, p-cpe:/a:amazon:linux:php8.1-enchant, p-cpe:/a:amazon:linux:php8.1-ffi-debuginfo, p-cpe:/a:amazon:linux:php8.1-ffi, p-cpe:/a:amazon:linux:php8.1-fpm-debuginfo, p-cpe:/a:amazon:linux:php8.1-fpm, p-cpe:/a:amazon:linux:php8.1-gd-debuginfo, p-cpe:/a:amazon:linux:php8.1-gd, p-cpe:/a:amazon:linux:php8.1-gmp-debuginfo, p-cpe:/a:amazon:linux:php8.1-gmp, p-cpe:/a:amazon:linux:php8.1-intl-debuginfo, p-cpe:/a:amazon:linux:php8.1-intl, p-cpe:/a:amazon:linux:php8.1-ldap-debuginfo, p-cpe:/a:amazon:linux:php8.1-ldap, p-cpe:/a:amazon:linux:php8.1-mbstring-debuginfo, p-cpe:/a:amazon:linux:php8.1-mbstring, p-cpe:/a:amazon:linux:php8.1-mysqlnd-debuginfo, p-cpe:/a:amazon:linux:php8.1-mysqlnd, p-cpe:/a:amazon:linux:php8.1-odbc-debuginfo, p-cpe:/a:amazon:linux:php8.1-odbc, p-cpe:/a:amazon:linux:php8.1-opcache-debuginfo, p-cpe:/a:amazon:linux:php8.1-opcache, p-cpe:/a:amazon:linux:php8.1-pdo-debuginfo, p-cpe:/a:amazon:linux:php8.1-pdo, p-cpe:/a:amazon:linux:php8.1-pgsql-debuginfo, p-cpe:/a:amazon:linux:php8.1-pgsql, p-cpe:/a:amazon:linux:php8.1-process-debuginfo, p-cpe:/a:amazon:linux:php8.1-process, p-cpe:/a:amazon:linux:php8.1-pspell-debuginfo, p-cpe:/a:amazon:linux:php8.1-pspell, p-cpe:/a:amazon:linux:php8.1-snmp-debuginfo, p-cpe:/a:amazon:linux:php8.1-snmp, p-cpe:/a:amazon:linux:php8.1-soap-debuginfo, p-cpe:/a:amazon:linux:php8.1-soap, p-cpe:/a:amazon:linux:php8.1-tidy-debuginfo, p-cpe:/a:amazon:linux:php8.1-tidy, p-cpe:/a:amazon:linux:php8.1-xml-debuginfo, p-cpe:/a:amazon:linux:php8.1-xml, p-cpe:/a:amazon:linux:php8.1-zip-debuginfo, p-cpe:/a:amazon:linux:php8.1-zip, p-cpe:/a:amazon:linux:php8.1, p-cpe:/a:amazon:linux:php

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

Exploit Available: true

Exploit Ease: Exploits are available

Vulnerability Publication Date: 10/21/2026

CISA Known Exploited Vulnerability Due Dates: 10/29/2026

Reference Information

CVE: CVE-2026-109618