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MixPHP Framework CVE-2026-37552

| EUVD-2026-26670 HIGH
Deserialization of Untrusted Data (CWE-502)
2026-05-01 mitre
8.4
CVSS 3.1
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CVSS VectorNVD

CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack Vector
Local
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

Lifecycle Timeline

4
Analysis Generated
May 01, 2026 - 16:30 vuln.today
EUVD ID Assigned
May 01, 2026 - 16:00 euvd
EUVD-2026-26670
Analysis Generated
May 01, 2026 - 16:00 vuln.today
CVE Published
May 01, 2026 - 00:00 nvd
HIGH 8.4

DescriptionNVD

Unsafe deserialization vulnerability in MixPHP Framework 2.x thru 2.2.17. The sync-invoke TCP server (Server.php:87) receives data from a TCP socket, passes it directly to Opis\Closure\unserialize(), then executes the result via call_user_func(). No authentication or signature verification exists on the TCP connection. An attacker with access to the localhost TCP port (server binds 127.0.0.1) can send a crafted serialized PHP closure to achieve arbitrary code execution.

AnalysisAI

Arbitrary code execution in MixPHP Framework 2.x through 2.2.17 allows local attackers to execute malicious PHP closures via unauthenticated TCP connections to the sync-invoke server. The vulnerability stems from unsafe deserialization of untrusted data on localhost-bound port 127.0.0.1, where Server.php directly passes socket data to Opis\Closure\unserialize() and executes the result without authentication or signature verification. …

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RemediationAI

Within 24 hours: Identify all systems running MixPHP Framework 2.x versions and document their network exposure. Restrict network access to port 127.0.0.1 sync-invoke server to only trusted internal services. …

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CVE-2026-37552 vulnerability details – vuln.today

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