CVE-2026-45062 (GCVE-0-2026-45062)

Vulnerability from cvelistv5 – Published: 2026-06-10 17:38 – Updated: 2026-06-11 14:00
VLAI
Title
FrankenPHP: Unsafe Unicode Handling in CGI Path Splitting Allows Execution of Non-PHP Files
Summary
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.
Severity
8.1 (High)
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
SSVC
Exploitation: poc Automatable: no Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-06-11 14:00 UTC
CWE
  • CWE-20 - Improper Input Validation
  • CWE-176 - Improper Handling of Unicode Encoding
  • CWE-178 - Improper Handling of Case Sensitivity
Assigner
GitHub_M CNA under the mitre root
CNA scorecard C 72/100 over 7799 records in the last 180 days details
References
Impacted products
Vendor Product Version CPE status
php frankenphp Affected: >= 1.11.2, < 1.12.3
guessed Create a notification for this product.
Show details on NVD website
To clipboard 

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