CVE-2026-59989
Published:August 21, 2026
Updated:September 24, 2026
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.
Affected Packages
https://github.com/phalcon/cphalcon.git (GITHUB):
Affected version(s) >=v3.0.0 <v5.16.0Fix Suggestion:
Update to version v5.16.0phalcon/cphalcon (PHP):
Affected version(s) >=Dao-v1.3.0 <v5.16.0Fix Suggestion:
Update to version v5.16.0phalcon/cphalcon (PHP):
Affected version(s) >=v3.0.0 <v5.16.0Fix Suggestion:
Update to version v5.16.0Related Resources (7)
Do you need more information?
Contact UsCVSS v4
Base Score:
9.2
Attack Vector
NETWORK
Attack Complexity
LOW
Attack Requirements
PRESENT
Privileges Required
NONE
User Interaction
NONE
Vulnerable System Confidentiality
HIGH
Vulnerable System Integrity
HIGH
Vulnerable System Availability
HIGH
Subsequent System Confidentiality
NONE
Subsequent System Integrity
NONE
Subsequent System Availability
NONE
CVSS v3
Base Score:
9.8
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Weakness Type (CWE)
EPSS
Base Score:
0.31