Goal Reached Thanks to every supporter — we hit 100%!

Goal: 1000 CNY · Raised: 1359 CNY

100%
Buy Us a Coffee

CVE-2026-2657— wren-lang wren Error Message wren_compiler.c printError stack-based overflow

Quick assessment

Affected
wren-lang wren
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.

wren是Wren开源的一个并发脚本语言。 wren 0.4.0及之前版本存在安全漏洞，该漏洞源于错误消息处理组件中存在栈缓冲区溢出，可能导致本地内存损坏。

CVSS 3.3 · Low EPSS 0.24% · P15

Possible ATT&CK Techniques 1 AI

T1055 · Process Injection
Get alerts for future matching vulnerabilities Log in to subscribe

I. Basic Information for CVE-2026-2657

Vulnerability Information
Have questions about the vulnerability? See if Shenlong's analysis helps!
View Shenlong Deep Dive ↗

Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.

Vulnerability Title
wren-lang wren Error Message wren_compiler.c printError stack-based overflow
Source: CVE Program / CVE List V5
Vulnerability Description
A vulnerability has been found in wren-lang wren up to 0.4.0. This impacts the function printError of the file src/vm/wren_compiler.c of the component Error Message Handler. Such manipulation leads to stack-based buffer overflow. An attack has to be approached locally. The exploit has been disclosed to the public and may 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
栈缓冲区溢出
Source: CVE Program / CVE List V5
Vulnerability Title
wren 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
wren是Wren开源的一个并发脚本语言。 wren 0.4.0及之前版本存在安全漏洞，该漏洞源于错误消息处理组件中存在栈缓冲区溢出，可能导致本地内存损坏。
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
wren-lang wren 0.1 -

II. Public POCs for CVE-2026-2657

# POC Description Source Link Shenlong Link
AI-Generated POC Premium

No public POC found.

Login to generate AI POC

III. Intelligence Information for CVE-2026-2657

请登录查看更多情报信息。

IV. Related Vulnerabilities

Same product: wren
Same vendor: wren-lang
Same weakness: CWE-121