{"id":"CVE-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-libphp-2026-7568","BIT-php-2026-7568","BIT-php-min-2026-7568","GHSA-96wq-48vp-hh57"],"modified":"2026-11-11T02:56:06.163230556Z","published":"2026-05-10T03:42:36.433Z","related":["ALSA-2026:22142","ALSA-2026:22143","ALSA-2026:22305","ALSA-2026:22649","ALSA-2026:23388","ALSA-2026:33449","ALSA-2026:34354","SUSE-SU-2026:1957-1","SUSE-SU-2026:1958-1","SUSE-SU-2026:2037-1","SUSE-SU-2026:2091-1","SUSE-SU-2026:21612-1","openSUSE-SU-2026:10747-1","openSUSE-SU-2026:20745-1"],"database_specific":{"cna_assigner":"php","cwe_ids":["CWE-125","CWE-190"],"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/7xxx/CVE-2026-7568.json"},"references":[{"type":"WEB","url":"https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-7568.json"},{"type":"ADVISORY","url":"https://access.redhat.com/errata/RHSA-2026:22142"},{"type":"ADVISORY","url":"https://access.redhat.com/errata/RHSA-2026:22143"},{"type":"ADVISORY","url":"https://access.redhat.com/errata/RHSA-2026:22305"},{"type":"ADVISORY","url":"https://access.redhat.com/errata/RHSA-2026:22649"},{"type":"ADVISORY","url":"https://access.redhat.com/errata/RHSA-2026:23388"},{"type":"ADVISORY","url":"https://access.redhat.com/errata/RHSA-2026:33449"},{"type":"ADVISORY","url":"https://access.redhat.com/errata/RHSA-2026:34354"},{"type":"ADVISORY","url":"https://access.redhat.com/security/cve/CVE-2026-7568"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/7xxx/CVE-2026-7568.json"},{"type":"ADVISORY","url":"https://github.com/php/php-src/security/advisories/GHSA-96wq-48vp-hh57"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-7568"},{"type":"REPORT","url":"https://bugzilla.redhat.com/show_bug.cgi?id=2468566"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/php/php-src","events":[{"introduced":"70ee6c20ad97e02c2b8098aeea96fefbbc3ac5c2"},{"fixed":"48ed910b47285a1377f93f92557b8e401623dce0"},{"introduced":"d26068059e83fe40de3430a512471d194119bee0"},{"fixed":"dff62b8bdb21a5d610ef08e4291277724724c4d7"},{"introduced":"b437f2b32eb364c9496d24abcc734272e5c9c980"},{"fixed":"7a64ae0507799547fbbd39b067bd3dd2c35e8fec"},{"introduced":"685e99655ae97c667950f7f7d176985958718f56"},{"fixed":"fcc29c8d6d6ee6f5ba2d941f0a2a6ea6aa6ee633"}],"database_specific":{"extracted_events":[{"source":"CPE_RANGE","cpe":"cpe:2.3:a:php:php:*:*:*:*:*:*:*:*","range":[{"introduced":"8.2.0"},{"fixed":"8.2.31"}]},{"range":[{"introduced":"8.3.0"},{"fixed":"8.3.31"}],"source":"CPE_RANGE","cpe":"cpe:2.3:a:php:php:*:*:*:*:*:*:*:*"},{"range":[{"introduced":"8.4.0"},{"fixed":"8.4.21"}],"source":"CPE_RANGE","cpe":"cpe:2.3:a:php:php:*:*:*:*:*:*:*:*"},{"range":[{"introduced":"8.5.0"},{"fixed":"8.5.6"}],"source":"CPE_RANGE","cpe":"cpe:2.3:a:php:php:*:*:*:*:*:*:*:*"}]}}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-7568.json"}}],"schema_version":"1.9.2","severity":[{"type":"CVSS_V4","score":"CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:L/VI:L/VA:L/SC:L/SI:L/SA:L/RE:L/U:Amber"}]}