CVE WatchJul 13, 2026

CVE-2026-57584

Phalcon is a high-performance, full-stack PHP framework. Prior to 5.15.0, every Phalcon MVC application built with a default router register

CVSS

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No CVSS

EPSS

0.4%

p34

KEV

—

Exploit Today

0-100

Published: Jul 10, 2026 · Last modified: Jul 13, 2026 · CWE-1333

EPSS · 30d

0.4%EPSS · 30 days0.4%

2026-07-112026-07-19

Technical description

Phalcon is a high-performance, full-stack PHP framework. Prior to 5.15.0, every Phalcon MVC application built with a default router registers a built-in route whose compiled PCRE pattern contains the nested quantifier (/.), and the same construct is produced by the /:params placeholder and the CLI router. Phalcon\Mvc\Router::handle() matches this pattern against the attacker-controlled request URI on every request, so a crafted path such as one containing repeated slashes followed by decoded newlines can trigger catastrophic backtracking and cause CPU exhaustion or route-matching failure. This issue is fixed in version 5.15.0.

Official references

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