CVE-2026-45062
HIGH EPSS 42.8%
Published Jun 10, 20263w ago · Modified Jun 17, 20262w ago
8.1 CVSS 3.1
Published Jun 10, 2026 3w ago
Last Modified Jun 17, 2026 2w ago
Description
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 Details
Base Score
Exploitability
Impact
Vector string
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H Attack Vector Network
Attack Complexity High
Privileges Required None
User Interaction None
Scope Unchanged
Confidentiality High
Integrity High
Availability High
Threat Intelligence
EPSS Exploit Probability
42.8% percentile
Exploit & Patch Status
No Known Exploit
No Patch Available
Weaknesses 3
CWE-176
CWE-178
CWE-20 Improper Input Validation Validation
References 2
- github.com https://github.com/php/frankenphp/releases/tag/v1.12.3
- github.com https://github.com/php/frankenphp/security/advisories/GHSA-3g8v-8r37-cgjm
Remediation
No remediation data recorded yet
Check vendor advisories and the NVD entry for patch availability.