CVE-2026-45062: high-severity vulnerability in php frankenphp
FrankenPHP: Unsafe Unicode Handling in CGI Path Splitting Allows Execution of Non-PHP Files
Published · Updated
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21Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 8.1epss 0.7%
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.
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
Affected products
php · frankenphpRelated CVEs — php frankenphp
In the same product, most dangerous first.
CVE-2026-24895HIGHFrankenPHP affected by Path Confusion via Unicode casing in CGI path splitting allows execution of arbitrary filesEPSS 0.7%CVE-2026-24894HIGHFrankenPHP leaks session data between requests in worker modeEPSS 0.5%CVE-2026-82416HIGHFrankenPHP: Cross-request PHP session ID leak in worker mode when the session extension is a shared moduleEPSS 0.3%CVE-2026-85733MEDIUMFrankenPHP: Docker images serve phpinfo() as the default index.php, leaking environment variablesEPSS 0.2%CVE-2026-122233MEDIUMFrankenPHP before 1.13.4 Cross-Request Response Header Leak in Worker ModeEPSS 0.2%