SEPTEMBER 17, 2026
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Case File

CVE-2026-59989

CRITICAL · CVSS 9.2 EPSS 0.31% Public Exploit

Source: NVD + CISA KEV + EPSS · Published 2026-08-21 · Last synced 2026-09-17

CyberRota Analysis

AI-Generated

The vulnerability affects Phalcon versions 5.15.0 and earlier, where the `resolveFilter` function improperly handles user input in Volt templates, allowing attackers to inject malicious PHP code into the compiled cache file. This could lead to remote code execution when the template is rendered, posing a critical risk to applications using this framework. Organizations utilizing Phalcon for their PHP applications should prioritize upgrading to version 5.16.0 or later to mitigate this severe security threat.

Public Exploit Signal

A public exploit, PoC, GitHub repository or Metasploit reference was detected for this CVE.

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CVE
CVE-2026-59989
Severity
CRITICAL
CVSS
9.2
EPSS
0.31%

Original NVD Description

Phalcon is a high-performance, full-stack PHP framework. In 5.15.0 and earlier, resolveFilter in phalcon/Mvc/View/Engine/Volt/Compiler.zep builds the join filter by inserting the raw separator and array token values into generated PHP without passing them through expression(). An attacker who can influence Volt template source can place quote-breaking content in a join argument, inject PHP into the compiled cache file, and execute it when Phalcon\Mvc\View\Engine\Volt::render() loads the template. This issue is fixed in version 5.16.0.