{"id":"CVE-2026-7568","title":"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.…","summary":"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.…","severity":"high","cvss":7.5,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","cwe":["CWE-125","CWE-190","CWE-190"],"vendor":"php","product":"php","affected":["php >= 8.2.0, < 8.2.31","php >= 8.3.0, < 8.3.31","php >= 8.4.0, < 8.4.21","php >= 8.5.0, < 8.5.6"],"patched":["php 8.5.6"],"published":"2026-05-10","updated":"2026-07-01","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-7568","references":[{"url":"https://github.com/php/php-src/security/advisories/GHSA-96wq-48vp-hh57","label":"security@php.net"},{"url":"https://access.redhat.com/errata/RHSA-2026:22142","label":"0b0ca135-0b70-47e7-9f44-1890c2a1c46c"},{"url":"https://access.redhat.com/errata/RHSA-2026:22143","label":"0b0ca135-0b70-47e7-9f44-1890c2a1c46c"},{"url":"https://access.redhat.com/errata/RHSA-2026:22305","label":"0b0ca135-0b70-47e7-9f44-1890c2a1c46c"},{"url":"https://access.redhat.com/errata/RHSA-2026:22649","label":"0b0ca135-0b70-47e7-9f44-1890c2a1c46c"},{"url":"https://access.redhat.com/errata/RHSA-2026:23388","label":"0b0ca135-0b70-47e7-9f44-1890c2a1c46c"},{"url":"https://access.redhat.com/errata/RHSA-2026:33449","label":"0b0ca135-0b70-47e7-9f44-1890c2a1c46c"},{"url":"https://access.redhat.com/security/cve/CVE-2026-7568","label":"0b0ca135-0b70-47e7-9f44-1890c2a1c46c"},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2468566","label":"0b0ca135-0b70-47e7-9f44-1890c2a1c46c"},{"url":"https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-7568.json","label":"0b0ca135-0b70-47e7-9f44-1890c2a1c46c"}],"tags":["nvd"],"epss":0.00455,"epssPercentile":0.38691,"ingestedAt":"2026-07-01T15:50:58.831Z","slug":"CVE-2026-7568","body":"## Overview\n\nIn 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.\n\n## Affected\n\n- `php >= 8.2.0, < 8.2.31`\n- `php >= 8.3.0, < 8.3.31`\n- `php >= 8.4.0, < 8.4.21`\n- `php >= 8.5.0, < 8.5.6`\n\n## Remediation\n\nUpgrade past the affected range:\n\n- `php 8.5.6`","depth":"twilight","depthScore":41,"depthScoreParts":{"impact":41.3,"likelihood":0.1,"exploitation":0,"ransomware":0},"changes":[]}