{"id":"CVE-2026-45062","aliases":["GHSA-3g8v-8r37-cgjm","GO-2026-5084"],"url":"https://o3.security/vulnerability/CVE-2026-45062","summary":"FrankenPHP: Unsafe Unicode Handling in CGI Path Splitting Allows Execution of Non-PHP Files","details":"FrankenPHP is a modern application server for PHP. From version 1.11.2 to before version 1.12.3, the splitPos() function in cgi.go misuses golang.org/x/text/search with search.IgnoreCase when the request path contains a non-ASCII byte. Two distinct flaws in that fallback let an attacker mislead FrankenPHP into treating a non-.php file as a .php script. In any deployment where the attacker can place content into a file served by FrankenPHP (uploads, file storage, etc.), this can be escalated to remote code execution by crafting a URL whose path triggers either flaw. This issue has been patched in version 1.12.3.","published":"2026-06-10T17:38:42.454Z","modified":"2026-08-12T03:51:43.264105276Z","cvss":{"score":8.1,"severity":"HIGH","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H"},"epss":{"score":0.00568,"percentile":0.43936,"asOf":"2026-08-09"},"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"Go","name":"github.com/dunglas/frankenphp","fixedVersion":"1.12.3"}],"fix":null,"references":[{"type":"WEB","url":"https://github.com/php/frankenphp/releases/tag/v1.12.3"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/45xxx/CVE-2026-45062.json"},{"type":"ADVISORY","url":"https://github.com/php/frankenphp/security/advisories/GHSA-3g8v-8r37-cgjm"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-45062"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-08-12T03:51:43.264105276Z"}}