CVE-2026-3388— Squirrel sqcompiler.cpp UnaryOP recursion
Quick assessment
Affected
n/a Squirrel
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.
SQUIRREL是Alberto Demichelis开源的编程语言SQUIRREL 3.2稳定版。 Squirrel 3.2及之前版本存在安全漏洞，该漏洞源于文件squirrel/sqcompiler.cpp中函数存在不受控制的递归。
Possible ATT&CK Techniques 1 AI
T1203 · Exploitation for Client Execution
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I. Basic Information for CVE-2026-3388
Vulnerability Information
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Vulnerability Title
Squirrel sqcompiler.cpp UnaryOP recursion
Source: CVE Program / CVE List V5
Vulnerability Description
A vulnerability was found in Squirrel up to 3.2. This affects the function SQCompiler::Factor/SQCompiler::UnaryOP of the file squirrel/sqcompiler.cpp. Performing a manipulation results in uncontrolled recursion. The attack needs to be approached locally. The exploit has been made public and could be used. The project was informed of the problem early through an issue report but has not responded yet.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L
Source: CVE Program / CVE List V5
Vulnerability Type
未经控制的递归
Source: CVE Program / CVE List V5
Vulnerability Title
SQUIRREL 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
SQUIRREL是Alberto Demichelis开源的编程语言SQUIRREL 3.2稳定版。 Squirrel 3.2及之前版本存在安全漏洞，该漏洞源于文件squirrel/sqcompiler.cpp中函数存在不受控制的递归。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| - | Squirrel | 3.0 | - |
|
II. Public POCs for CVE-2026-3388
| # | POC Description | Source Link | Shenlong Link |
|---|
AI-Generated POC
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Same Patch Batch · n/a · 2026-03-01 · 5 CVEs total
| CVE-2026-3389 | 3.3 LOW | Squirrel sqstdrex.cpp sqstd_rex_newnode null pointer dereference |
| CVE-2026-3384 | 3.3 LOW | ChaiScript chaiscript_eval.hpp Function_Push_Pop recursion |
| CVE-2026-3383 | 3.3 LOW | ChaiScript boxed_number.hpp go divide by zero |
| CVE-2026-3382 | 3.3 LOW | ChaiScript boxed_number.hpp get_as memory corruption |
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V. Comments for CVE-2026-3388
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