{"id":"BIT-libphp-2026-7568","summary":"Signed integer overflow in metaphone()","details":"In PHP versions 8.2.* before 8.2.31, 8.3.* before 8.3.31, 8.4.* before 8.4.21, and 8.5.* before 8.5.6, the metaphone() function in ext/standard/metaphone.c uses a signed int variable to track the current position within the input string. If a string longer than 2,147,483,647 bytes is passed, a signed integer overflow occurs, resulting in undefined behavior. This can lead to an out-of-bounds read, causing a segmentation fault or access to unrelated memory, and may affect the availability of the PHP process.","aliases":["BIT-php-2026-7568","BIT-php-min-2026-7568","CVE-2026-7568"],"modified":"2026-09-10T16:01:42.002391416Z","published":"2026-05-12T08:50:34.032Z","database_specific":{"cpes":["cpe:2.3:a:php:php:*:*:*:*:*:*:*:*"],"severity":"High"},"references":[{"type":"ADVISORY","url":"https://github.com/php/php-src/security/advisories/GHSA-96wq-48vp-hh57"},{"type":"WEB","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-7568"},{"type":"WEB","url":"https://access.redhat.com/errata/RHSA-2026:22142"},{"type":"WEB","url":"https://access.redhat.com/errata/RHSA-2026:22143"},{"type":"WEB","url":"https://access.redhat.com/errata/RHSA-2026:22305"},{"type":"WEB","url":"https://access.redhat.com/errata/RHSA-2026:22649"},{"type":"WEB","url":"https://access.redhat.com/errata/RHSA-2026:23388"},{"type":"WEB","url":"https://access.redhat.com/errata/RHSA-2026:33449"},{"type":"WEB","url":"https://access.redhat.com/errata/RHSA-2026:34354"},{"type":"WEB","url":"https://access.redhat.com/security/cve/CVE-2026-7568"},{"type":"WEB","url":"https://bugzilla.redhat.com/show_bug.cgi?id=2468566"},{"type":"WEB","url":"https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-7568.json"}],"affected":[{"package":{"name":"libphp","ecosystem":"Bitnami","purl":"pkg:bitnami/libphp"},"ranges":[{"type":"SEMVER","events":[{"introduced":"8.2.0"},{"fixed":"8.2.31"},{"introduced":"8.3.0"},{"fixed":"8.3.31"},{"introduced":"8.4.0"},{"fixed":"8.4.21"},{"introduced":"8.5.0"},{"fixed":"8.5.6"}]}],"database_specific":{"source":"https://github.com/bitnami/vulndb/tree/main/data/libphp/BIT-libphp-2026-7568.json"},"severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"}]}],"schema_version":"1.9.0"}