{"cve":"CVE-2026-24895","nvd":{"published":"2026-02-12T20:16:10.170","modified":"2026-06-17T10:23:46.000","status":"Analyzed","description":"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.","cvss_v4":{"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P","score":8.9},"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","score":9.8},"cwes":["CWE-180"],"references":["https://github.com/php/frankenphp/commit/04fdc0c1e8fde94e2c1ad86217e962c88d27c53e","https://github.com/php/frankenphp/releases/tag/v1.11.2","https://github.com/php/frankenphp/security/advisories/GHSA-g966-83w7-6w38"],"products":["php:frankenphp"],"source":"nvd","synced_at":"2026-10-19T22:23:35.260773158+00:00"},"epss":{"cve":"CVE-2026-24895","score":0.0065,"percentile":0.51182,"date":"2026-10-31"},"kev":null,"osv":[{"id":"GHSA-g966-83w7-6w38","url":"https://osv.dev/vulnerability/GHSA-g966-83w7-6w38","summary":"FrankenPHP's unicode case-folding length expansion causes incorrect split_path index (SCRIPT_NAME/PATH_INFO confusion) in FrankenPHP","modified":"2026-02-24T20:59:20.300541Z","packages":[{"ecosystem":"Go","name":"github.com/dunglas/frankenphp","purl":"pkg:golang/github.com/dunglas/frankenphp","ranges":["<1.11.2"],"fixed":["1.11.2"]}]},{"id":"GO-2026-4486","url":"https://osv.dev/vulnerability/GO-2026-4486","summary":"FrankenPHP's unicode case-folding length expansion causes incorrect split_path index (SCRIPT_NAME/PATH_INFO confusion) in FrankenPHP in github.com/dunglas/frankenphp","modified":"2026-02-19T20:41:08.215784Z","packages":[{"ecosystem":"Go","name":"github.com/dunglas/frankenphp","purl":"pkg:golang/github.com/dunglas/frankenphp","ranges":["<1.11.2"],"fixed":["1.11.2"]}]}],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}