CVE-2026-37552

HIGH 8.4

CVSS Score

8.4

EPSS Score

0.0%

EPSS Percentile

0th

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.

Vendor	n/a
Product	n/a
Published	May 1, 2026
Last Updated	May 1, 2026

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CVSS v3 Breakdown

CVSS:3.1/AC:L/AV:L/A:H/C:H/I:H/PR:N/S:U/UI:N

Attack Vector

Local

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Affected Versions

n/a / n/a

n/a

References

NVD ↗ CVE.org ↗ EPSS Data ↗

github.com: https://github.com/mix-php/mix github.com: https://github.com/mix-php/mix/blob/v2.2.17/src/sync-invoke/src/Server.php gist.github.com: https://gist.github.com/sgInnora/fa46386840fe978a30d7e53c458f2975