{"id":"UBUNTU-CVE-2026-7258","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, some functions, including urldecode(), pass signed char to ctype functions (like isxdigit()). On the systems with default signed char and optimized table-lookup ctype functions - such as NetBSD - this can lead to accessing array with negative offset, which can trigger a denial of service.","modified":"2026-05-28T15:46:30.014508145Z","published":"2026-05-10T05:16:00Z","upstream":["CVE-2026-7258"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2026-7258"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2026-7258"},{"type":"REPORT","url":"https://github.com/php/php-src/security/advisories/GHSA-m8rr-4c36-8gq4"}],"affected":[{"package":{"name":"php8.3","ecosystem":"Ubuntu:24.04:LTS","purl":"pkg:deb/ubuntu/php8.3?arch=source&distro=noble"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"8.3.6-0ubuntu0.24.04.9"}]}],"versions":["8.3.0-1","8.3.0-1ubuntu1","8.3.4-1","8.3.4-1build1","8.3.6-0maysync1","8.3.6-0ubuntu0.24.04.1","8.3.6-0ubuntu0.24.04.2","8.3.6-0ubuntu0.24.04.3","8.3.6-0ubuntu0.24.04.4","8.3.6-0ubuntu0.24.04.5","8.3.6-0ubuntu0.24.04.6","8.3.6-0ubuntu0.24.04.7","8.3.6-0ubuntu0.24.04.8"],"ecosystem_specific":{"availability":"No subscription 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