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CVE-2025-53620— Crashing any Qwik Server

Quick assessment

Affected
QwikDev qwik
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.

Qwik是Qwik Dev开源的一款微型Web框架。 Qwik 1.13.0之前版本存在安全漏洞，该漏洞源于未处理无效qfunc错误，可能导致服务崩溃。

AI Predicted 5.3 Difficulty: Easy EPSS 0.36% · P27

Possible ATT&CK Techniques 1 AI

T1499 · Endpoint Denial of Service
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I. Basic Information for CVE-2025-53620

Vulnerability Information
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Vulnerability Title
Crashing any Qwik Server
Source: CVE Program / CVE List V5
Vulnerability Description
@builder.io/qwik-city is the meta-framework for Qwik. When a Qwik Server Action QRL is executed it dynamically load the file containing the symbol. When an invalid qfunc is sent, the server does not handle the thrown error. The error then causes Node JS to exit. This vulnerability is fixed in 1.13.0.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:H
Source: CVE Program / CVE List V5
Vulnerability Type
未捕获的异常
Source: CVE Program / CVE List V5
Vulnerability Title
Qwik 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Qwik是Qwik Dev开源的一款微型Web框架。 Qwik 1.13.0之前版本存在安全漏洞，该漏洞源于未处理无效qfunc错误，可能导致服务崩溃。
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
QwikDev qwik < 1.13.0 -

II. Public POCs for CVE-2025-53620

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III. Intelligence Information for CVE-2025-53620

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Vendor Advisories for CVE-2025-53620 (1)

IV. Related Vulnerabilities

Same product: qwik
Same vendor: QwikDev
Same weakness: CWE-248

V. Comments for CVE-2025-53620

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