{"id":"CVE-2026-24895","aliases":["GHSA-g966-83w7-6w38","GO-2026-4486"],"url":"https://o3.security/vulnerability/CVE-2026-24895","summary":"FrankenPHP affected by Path Confusion via Unicode casing in CGI path splitting allows execution of arbitrary files","details":"FrankenPHP is a modern application server for PHP. Prior to 1.11.2, FrankenPHP’s CGI path splitting logic improperly handles Unicode characters during case conversion. The logic computes the split index (for finding .php) on a lowercased copy of the request path but applies that byte index to the original path. Because strings.ToLower() in Go can increase the byte length of certain UTF-8 characters (e.g., Ⱥ expands when lowercased), the computed index may not align with the correct position in the original string. This results in an incorrect SCRIPT_NAME and SCRIPT_FILENAME, potentially causing FrankenPHP to execute a file other than the one intended by the URI. This vulnerability is fixed in 1.11.2.","published":"2026-02-12T19:16:06.618Z","modified":"2026-08-07T11:49:52.589991533Z","cvss":null,"epss":{"score":0.00573,"percentile":0.44174,"asOf":"2026-08-08"},"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"Go","name":"github.com/dunglas/frankenphp","fixedVersion":"1.11.2"}],"fix":{"url":"https://github.com/php/frankenphp/commit/04fdc0c1e8fde94e2c1ad86217e962c88d27c53e","label":"php/frankenphp@04fdc0c"},"references":[{"type":"WEB","url":"https://github.com/php/frankenphp/releases/tag/v1.11.2"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/24xxx/CVE-2026-24895.json"},{"type":"ADVISORY","url":"https://github.com/php/frankenphp/security/advisories/GHSA-g966-83w7-6w38"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-24895"},{"type":"FIX","url":"https://github.com/php/frankenphp/commit/04fdc0c1e8fde94e2c1ad86217e962c88d27c53e"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-08-07T11:49:52.589991533Z"}}