CVE-2026-37552 json
Unsafe deserialization vulnerability in MixPHP Framework 2.x thru 2.2.17.
published 2026-05-01 6 mo ago modified 2026-07-08 4 mo ago also EUVD-2026-26670
- cvss
- 8.4
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.3%
- EPSS 0.3% chance of exploitation in 30 days, percentile 16%
- public exploits
- 0
- none known
Summary
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.
CISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- total
- Assessed
- 6 mo ago
Exploit prediction
0.25% chance of exploitation in the next 30 days, higher than 16% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 8.4 | CVSS:3.1/AC:L/AV:L/A:H/C:H/I:H/PR:N/S:U/UI:N |
| CNA | 3.1 | 8.4 | CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
Classification
- Weakness
-
- CWE-502 Deserialization of Untrusted Data
References
-
github.com
/mix-php/mix
product
-
github.com
/mix-php/mix/blob/v2.2.17/src/sync-invoke/src/Server.php
product
-
gist.github.com
/sgInnora/fa46386840fe978a30d7e53c458f2975
third-party-advisory
Sources
- CVE List CVE-2026-37552
- NVD CVE-2026-37552
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.