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php: heap-based buffer overflow in array_merge()

🗓️ 12 Mar 2026 16:34:02Reported by RedHatType 
redhat
 redhat
🔗 access.redhat.com👁 17 Views

PHP heap overflow in array_merge when arrays exceed thirty two bit or HT_MAX_SIZE, causing crash and memory corruption.

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OSOS VersionArchitecturePackagePackage VersionFilename
Red Hat Enterprise Linux8.3noarchapcu-panel5.1.18-1.module+el8.3.0+6678+b09f589eapcu-panel-5.1.18-1.module+el8.3.0+6678+b09f589e.noarch.rpm
Red Hat Enterprise Linux8.3aarch64libzip1.6.1-1.module+el8.3.0+6678+b09f589elibzip-1.6.1-1.module+el8.3.0+6678+b09f589e.aarch64.rpm
Red Hat Enterprise Linux8.3ppc64lelibzip1.6.1-1.module+el8.3.0+6678+b09f589elibzip-1.6.1-1.module+el8.3.0+6678+b09f589e.ppc64le.rpm
Red Hat Enterprise Linux8.3s390xlibzip1.6.1-1.module+el8.3.0+6678+b09f589elibzip-1.6.1-1.module+el8.3.0+6678+b09f589e.s390x.rpm
Red Hat Enterprise Linux8.3x86_64libzip1.6.1-1.module+el8.3.0+6678+b09f589elibzip-1.6.1-1.module+el8.3.0+6678+b09f589e.x86_64.rpm
Red Hat Enterprise Linux8.3aarch64libzip-debuginfo1.6.1-1.module+el8.3.0+6678+b09f589elibzip-debuginfo-1.6.1-1.module+el8.3.0+6678+b09f589e.aarch64.rpm
Red Hat Enterprise Linux8.3ppc64lelibzip-debuginfo1.6.1-1.module+el8.3.0+6678+b09f589elibzip-debuginfo-1.6.1-1.module+el8.3.0+6678+b09f589e.ppc64le.rpm
Red Hat Enterprise Linux8.3s390xlibzip-debuginfo1.6.1-1.module+el8.3.0+6678+b09f589elibzip-debuginfo-1.6.1-1.module+el8.3.0+6678+b09f589e.s390x.rpm
Red Hat Enterprise Linux8.3x86_64libzip-debuginfo1.6.1-1.module+el8.3.0+6678+b09f589elibzip-debuginfo-1.6.1-1.module+el8.3.0+6678+b09f589e.x86_64.rpm
Red Hat Enterprise Linux8.3aarch64libzip-debugsource1.6.1-1.module+el8.3.0+6678+b09f589elibzip-debugsource-1.6.1-1.module+el8.3.0+6678+b09f589e.aarch64.rpm
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08 Jul 2026 13:48Current
6Medium risk
Vulners AI Score6
CVSS 3.16.5 - 8.2
EPSS0.00428
SSVC
17