{"affected":[{"defaultStatus":"unaffected","ecosystem":"golang","packageName":"github.com/dunglas/frankenphp","product":"frankenphp","source":"CNA: VulnCheck","vendor":"php","versions":[{"lessThan":"1.13.0","status":"affected","version":"0","versionType":"semver"},{"status":"unaffected","version":"1.13.0","versionType":"semver"}]}],"cveId":"CVE-2026-128023","cwes":["CWE-290"],"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.","epss":null,"exploits":[],"kev":null,"metrics":[{"score":9.1,"severity":"critical","source":"CNA: VulnCheck","vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N","version":"4.0"},{"score":7.4,"severity":"high","source":"CNA: VulnCheck","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N","version":"3.1"},{"score":9.1,"severity":"critical","source":"NVD: disclosure@vulncheck.com","vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","version":"4.0"},{"score":7.4,"severity":"high","source":"NVD: disclosure@vulncheck.com","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N","version":"3.1"}],"modifiedAt":1794565088043,"publishedAt":1794562445836,"references":[{"source":"CNA: VulnCheck","tags":["vendor-advisory"],"url":"https://github.com/php/frankenphp/security/advisories/GHSA-qcrp-8483-f2f2"},{"source":"CNA: VulnCheck","tags":["third-party-advisory"],"url":"https://www.vulncheck.com/advisories/frankenphp-before-1.13.0-authentication-bypass-via-dot-form-header-name-aliasing"},{"source":"disclosure@vulncheck.com","tags":[],"url":"https://github.com/php/frankenphp/security/advisories/GHSA-qcrp-8483-f2f2"},{"source":"disclosure@vulncheck.com","tags":[],"url":"https://www.vulncheck.com/advisories/frankenphp-before-1.13.0-authentication-bypass-via-dot-form-header-name-aliasing"}],"remediation":[],"revision":"c1cca1759be8fd57f9bd4c450f62c5011e28e5b2b0e09842d51ae865855b2c37","sources":[{"modifiedAt":1794562445836,"name":"CNA: VulnCheck","retrievedAt":1794564820727,"url":"https://www.cve.org/CVERecord?id=CVE-2026-128023"},{"modifiedAt":1794565088043,"name":"NVD","retrievedAt":1794572251724,"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-128023"}],"ssvc":null,"status":"published","title":"FrankenPHP before 1.13.0 Authentication Bypass via Dot-Form Header Name Aliasing","updatedAt":1794572251724}