CVE-2026-45062

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.

Score
CVSS 3.1 8.1 High
Status
Deferred - security-advisories@github.com
Published
2026-06-10
Last modified
2026-10-25
Weaknesses
CWE-176, CWE-178, CWE-20

Affected products

References

 
 
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