CVE-2025-53620criticalCWE-248

CVE-2025-53620: critical vulnerability in QwikDev qwik

Crashing any Qwik Server

Published

Follow this CVE+ Monitor qwik+ Monitor @builder.io/qwik-city

E-mail alert when it lands in KEV, gets a public PoC or its score goes up.

28Vexday Risk Score

No sign of exploitation. No public exploitation artifact known so far.

ssvc Trackcvss 9.2epss 0.4%
@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.
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
Affected products
QwikDev · qwik
Related CVEs — QwikDev qwik

In the same product, most dangerous first.

CVE-2026-27971CRITICALQwik affected by unauthenticated RCE via server$ DeserializationEPSS 5.5%CVE-2026-25150CRITICALPrototype Pollution via FormData Processing in Qwik CityEPSS 0.7%CVE-2026-84994HIGHQwik: Crashing any Qwik Server via Resource thenableEPSS 0.5%CVE-2024-41677MEDIUMCross-site Scripting (XSS) vulnerability due to improper HTML escaping in qwikEPSS 0.5%CVE-2026-32701HIGHQwik has array method pollution in FormData processing, allowing type confusion and DoSEPSS 0.5%CVE-2026-25148MEDIUMQwik SSR XSS via Unsafe Virtual Node SerializationEPSS 0.3%