CVE-2026-42551 (GCVE-0-2026-42551)
Vulnerability from cvelistv5
Published
2026-05-13 19:23
Modified
2026-05-14 12:49
CWE
  • CWE-436 - Interpretation Conflict
Summary
Flight is an extensible micro-framework for PHP. Prior to 3.18.1, Request::getMethod() unconditionally honors the X-HTTP-Method-Override header and the $_REQUEST['_method'] parameter on any HTTP verb (including safe verbs such as GET), with no opt-in and no whitelist of permitted target methods. A GET request can silently become a DELETE or PUT, enabling CSRF escalation against destructive endpoints, bypass of middleware gated on unsafe verbs, and cache poisoning between CDN and origin. This vulnerability is fixed in 3.18.1.
Impacted products
Vendor Product Version
flightphp core Version: < 3.18.1
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Show details on NVD website


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  • Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
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