CVE-2026-33661: Psr7 Host Header Localhost Bypass
Trusting the `Host` header for security decisions is insecure because attackers can spoof it. Do not rely on `$request->getUri()->getHost()` to bypass authentication or signature checks.
Provally CuratedPublic repositoryHighMedium confidenceVerifiedApache-2.0
PHP
PHPgreprules fetch cve-2026-33661-psr7-host-header-localhost-bypass --engine opengrepDescription
Trusting the `Host` header for security decisions is insecure because attackers can spoof it. Do not rely on `$request->getUri()->getHost()` to bypass authentication or signature checks.
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