CVE-2026-45062

Source
https://cve.org/CVERecord?id=CVE-2026-45062
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-45062.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-45062
Aliases
Published
2026-06-10T17:38:42.454Z
Modified
2026-07-08T08:13:30.334570734Z
Severity
  • 8.1 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H CVSS Calculator
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.

Database specific
{
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/45xxx/CVE-2026-45062.json",
    "cna_assigner": "GitHub_M",
    "cwe_ids": [
        "CWE-176",
        "CWE-178",
        "CWE-20"
    ]
}
References

Affected packages

Git / github.com/php/frankenphp

Affected ranges

Type
GIT
Repo
https://github.com/php/frankenphp
Events
Database specific
{
    "source": [
        "AFFECTED_FIELD",
        "DESCRIPTION",
        "REFERENCES"
    ],
    "extracted_events": [
        {
            "introduced": "1.11.2"
        },
        {
            "fixed": "1.12.3"
        },
        {
            "introduced": "0"
        }
    ]
}

Affected versions

caddy/v1.*
caddy/v1.11.2
caddy/v1.11.3
caddy/v1.12.0
caddy/v1.12.1
caddy/v1.12.2
v1.*
v1.11.2
v1.11.3
v1.12.0
v1.12.1
v1.12.2

Database specific

source
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-45062.json"