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CVE-2025-34146— nyariv sandboxjs 0.8.23 Prototype Pollution Sandbox Escape DoS

Quick assessment

Affected
nyariv sandboxjs
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.

SandboxJS是nyariv个人开发者的一个安全评估软件。 SandboxJS 0.8.23及之前版本存在安全漏洞，该漏洞源于原型污染，可能导致拒绝服务或逃逸沙箱环境。

CVSS 7.0 · High EPSS 0.21% · P11

Possible ATT&CK Techniques 1 AI

T1055.007

Affected Version Matrix 1

VendorProduct Version RangeStatus
nyariv sandboxjs ≤ 0.8.23 affected
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I. Basic Information for CVE-2025-34146

Vulnerability Information
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Vulnerability Title
nyariv sandboxjs 0.8.23 Prototype Pollution Sandbox Escape DoS
Source: CVE Program / CVE List V5
Vulnerability Description
A prototype pollution vulnerability exists in @nyariv/sandboxjs versions <= 0.8.23, allowing attackers to inject arbitrary properties into Object.prototype via crafted JavaScript code. This can result in a denial-of-service (DoS) condition or, under certain conditions, escape the sandboxed environment intended to restrict code execution. The vulnerability stems from insufficient prototype access checks in the sandbox’s executor logic, particularly in the handling of JavaScript function objects returned.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:H/SC:N/SI:N/SA:N
Source: CVE Program / CVE List V5
Vulnerability Type
CWE-1321
Source: CVE Program / CVE List V5
Vulnerability Title
SandboxJS 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
SandboxJS是nyariv个人开发者的一个安全评估软件。 SandboxJS 0.8.23及之前版本存在安全漏洞，该漏洞源于原型污染，可能导致拒绝服务或逃逸沙箱环境。
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
nyariv sandboxjs 0 ~ 0.8.23 -

II. Public POCs for CVE-2025-34146

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III. Intelligence Information for CVE-2025-34146

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Proof of Concept for CVE-2025-34146 (1)

Other References for CVE-2025-34146 (1)

IV. Related Vulnerabilities

Same product: sandboxjs
Same vendor: nyariv
Same weakness: CWE-1321

V. Comments for CVE-2025-34146

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