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CVE-2026-57584

HIGH
8.7
CVSS 4.0
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.

Metadata

CVE ID
CVE-2026-57584
State
PUBLISHED
Assigner
GitHub_M
Reserved
2026-06-24 18:49 UTC
Published
2026-07-10 21:04 UTC
Last updated
2026-07-10 21:04 UTC
Primary CWE
CWE-1333
CWE-1333: Inefficient Regular Expression Complexity
Vendor / Product
phalcon / cphalcon
Sources
cve.org  ·  NVD

Severity & Metrics

8.7 HIGH CVSS 4.0
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
Affected products (1)
VendorProductPlatformVersions
phalcon cphalcon — < 5.15.0
Weakness (CWE)
CWESourceDescription
CWE-1333 cna CWE-1333: Inefficient Regular Expression Complexity
CVSS scores (1)
ScoreSeverityVersionSourceVector
8.7 HIGH 4.0 cna CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
References (4)
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