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php: heap-based buffer overflow in array_merge()

🗓️ 09 Mar 2026 15:28:44Reported by RedHatType 
redhat
 redhat🔗 access.redhat.com👁 3 Views

PHP heap overflow in array_merge when element count exceeds 32-bit or HT_MAX_SIZE, causing crash and memory corruption.

Related
Packages
Refs
ReporterTitlePublishedViews
Family
Tenable Nessus		Amazon Linux 2023 : php8.4, php8.4-bcmath, php8.4-cli (ALAS2023-2025-1352)
8 Jan 202600:00
–nessus
Tenable Nessus		Amazon Linux 2023 : php8.3, php8.3-bcmath, php8.3-cli (ALAS2023-2025-1353)
8 Jan 202600:00
–nessus
Tenable Nessus		Amazon Linux 2023 : php8.2, php8.2-bcmath, php8.2-cli (ALAS2023-2025-1354)
8 Jan 202600:00
–nessus
Tenable Nessus		Amazon Linux 2023 : php8.1, php8.1-bcmath, php8.1-cli (ALAS2023-2025-1355)
8 Jan 202600:00
–nessus
Tenable Nessus		Amazon Linux 2 : php, --advisory ALAS2PHP8.1-2026-008 (ALASPHP8.1-2026-008)
22 Jan 202600:00
–nessus
Tenable Nessus		Amazon Linux 2 : php, --advisory ALAS2PHP8.2-2026-009 (ALASPHP8.2-2026-009)
22 Jan 202600:00
–nessus
Tenable Nessus		Alibaba Cloud Linux 3 : 0043: php:7.4 (ALINUX3-SA-2026:0043)
5 Mar 202600:00
–nessus
Tenable Nessus		AlmaLinux 9 : php:8.2 (ALSA-2026:1409)
2 Feb 202600:00
–nessus
Tenable Nessus		AlmaLinux 8 : php:8.2 (ALSA-2026:1412)
2 Feb 202600:00
–nessus
Tenable Nessus		AlmaLinux 9 : php:8.3 (ALSA-2026:1429)
30 Jan 202600:00
–nessus
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OSOS VersionArchitecturePackagePackage VersionFilename
Red Hat Enterprise Linux9.6aarch64php8.0.30-3.el9_6.1php-8.0.30-3.el9_6.1.aarch64.rpm
Red Hat Enterprise Linux9.6ppc64lephp8.0.30-3.el9_6.1php-8.0.30-3.el9_6.1.ppc64le.rpm
Red Hat Enterprise Linux9.6s390xphp8.0.30-3.el9_6.1php-8.0.30-3.el9_6.1.s390x.rpm
Red Hat Enterprise Linux9.6x86_64php8.0.30-3.el9_6.1php-8.0.30-3.el9_6.1.x86_64.rpm
Red Hat Enterprise Linux9.6aarch64php-bcmath8.0.30-3.el9_6.1php-bcmath-8.0.30-3.el9_6.1.aarch64.rpm
Red Hat Enterprise Linux9.6ppc64lephp-bcmath8.0.30-3.el9_6.1php-bcmath-8.0.30-3.el9_6.1.ppc64le.rpm
Red Hat Enterprise Linux9.6s390xphp-bcmath8.0.30-3.el9_6.1php-bcmath-8.0.30-3.el9_6.1.s390x.rpm
Red Hat Enterprise Linux9.6x86_64php-bcmath8.0.30-3.el9_6.1php-bcmath-8.0.30-3.el9_6.1.x86_64.rpm
Red Hat Enterprise Linux9.6aarch64php-bcmath-debuginfo8.0.30-3.el9_6.1php-bcmath-debuginfo-8.0.30-3.el9_6.1.aarch64.rpm
Red Hat Enterprise Linux9.6ppc64lephp-bcmath-debuginfo8.0.30-3.el9_6.1php-bcmath-debuginfo-8.0.30-3.el9_6.1.ppc64le.rpm
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08 Jul 2026 13:48Current
6Medium risk
Vulners AI Score6
CVSS 3.16.5 - 8.2
EPSS0.00428
SSVC
CWE-787
php languageheap overflowarray mergeinteger overflowelement counting
3