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CVE-2026-3385— wren-lang wren wren_compiler.c resolveLocal recursion

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，该漏洞源于文件src/vm/wren_compiler.c中函数resolveLocal存在不受控制的递归。

CVSS 3.3 · Low EPSS 0.20% · P9

Possible ATT&CK Techniques 1 AI

T1211 · Exploitation for Stealth
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I. Basic Information for CVE-2026-3385

Vulnerability Information
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Vulnerability Title
wren-lang wren wren_compiler.c resolveLocal recursion
Source: CVE Program / CVE List V5
Vulnerability Description
A vulnerability was detected in wren-lang wren up to 0.4.0. Affected is the function resolveLocal of the file src/vm/wren_compiler.c. The manipulation results in uncontrolled recursion. Attacking locally is a requirement. The exploit is now 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
未经控制的递归
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，该漏洞源于文件src/vm/wren_compiler.c中函数resolveLocal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
wren-lang wren 0.1 -

II. Public POCs for CVE-2026-3385

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III. Intelligence Information for CVE-2026-3385

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Same Patch Batch · wren-lang · 2026-03-01 · 3 CVEs total

CVE-2026-3386 3.3 LOW wren-lang wren wren_compiler.c emitOp out-of-bounds
CVE-2026-3387 3.3 LOW wren-lang wren wren_compiler.c getByteCountForArguments null pointer dereference

IV. Related Vulnerabilities

Same product: wren
Same vendor: wren-lang
Same weakness: CWE-674