What is GHSA-prm4-w6g7-pw64?

GHSA-prm4-w6g7-pw64 is a security advisory published by GitHub Security Advisories with Critical severity. FrankenPHP before 1.13.0 contains an authentication bypass vulnerability that allows...

Which CVE IDs does GHSA-prm4-w6g7-pw64 cover?

GHSA-prm4-w6g7-pw64 covers the following CVE IDs: CVE-2026-128023. Each CVE has its own detail page on EchelonGraph Pulse with the synthesized EG score.

What is the CVSS v3 score of GHSA-prm4-w6g7-pw64?

GHSA-prm4-w6g7-pw64 has a CVSS v3 base score of 7.4, published by GitHub Security Advisories.

GHSA-prm4-w6g7-pw64CriticalCVSS 7.4

FrankenPHP before 1.13.0 contains an authentication bypass vulnerability that allows...

Vendor

GitHub Security Advisories

Published

November 13, 2026

Last Modified

November 13, 2026

🔗 CVE IDs covered (1)

CVE-2026-128023 →

📋 Description

FrankenPHP before 1.13.0 contains an authentication bypass vulnerability that allows unauthenticated attackers to spoof trusted headers by sending dot-form header names that PHP rewrites to underscores. Attackers can send headers like X.Authenticated.User or X.Forwarded.For that map to $_SERVER keys, spoofing user identity, client IP, or scheme.

🔗 References (4)

https://github.com/php/frankenphp/security/advisories/GHSA-qcrp-8483-f2f2
https://nvd.nist.gov/vuln/detail/CVE-2026-128023
https://www.vulncheck.com/advisories/frankenphp-before-1.13.0-authentication-bypass-via-dot-form-header-name-aliasing
https://github.com/advisories/GHSA-prm4-w6g7-pw64