Phalcon up to 5.14.x Router Router::handle resource consumption

Summaryinfo

A vulnerability was found in Phalcon up to 5.14.x and classified as problematic. This affects the function Router::handle of the component Router. Such manipulation leads to resource consumption. This vulnerability is traded as CVE-2026-57584. The attack may be launched remotely. There is no exploit available.

Detailsinfo

A vulnerability was found in Phalcon up to 5.14.x and classified as problematic. Affected by this issue is the function Router::handle of the component Router. The manipulation with an unknown input leads to a resource consumption vulnerability. Using CWE to declare the problem leads to CWE-400. The product does not properly control the allocation and maintenance of a limited resource, thereby enabling an actor to influence the amount of resources consumed, eventually leading to the exhaustion of available resources. Impacted is availability. CVE summarizes:

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.

The advisory is available at github.com. This vulnerability is handled as CVE-2026-57584 since 06/24/2026. The exploitation is known to be easy. The attack may be launched remotely. No form of authentication is required for exploitation. Technical details are known, but there is no available exploit. This vulnerability is assigned to T1499 by the MITRE ATT&CK project.

Upgrading to version 5.15.0 eliminates this vulnerability.

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Productinfo

Name

• Phalcon

Version

• 5.0
• 5.1
• 5.2
• 5.3
• 5.4
• 5.5
• 5.6
• 5.7
• 5.8
• 5.9
• 5.10
• 5.11
• 5.12
• 5.13
• 5.14

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CPE 2.2info

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