PT-2026-57332 · Phalcon · Cphalcon

Published 2026-07-10 · Updated 2026-07-10 · CVE-2026-57584

NVD

CVSS v4.0

8.7

High

Base vector

AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

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. PhalconMvcRouter::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.

Fix

DoS

Weakness Enumeration

CWE-1333

Related Identifiers

CVE-2026-57584

Affected Products

Cphalcon

References · 5

• https://nvd.nist.gov/vuln/detail/CVE-2026-57584 · Security Note
• https://github.com/phalcon/cphalcon/commit/fa798e919cb2c487062bb9899ad6fc2b673b3a67 · Note
• https://github.com/phalcon/cphalcon/security/advisories/GHSA-x7rj-f32v-7jjg · Note
• https://github.com/phalcon/cphalcon/releases/tag/v5.15.0 · Note
• https://github.com/phalcon/cphalcon/commit/14ba22d389d5ca620bb9d5207205f836ef1224f2 · Note