Server Action Error Handling Flaw in Qwik Framework by Builder.io
CVE-2025-53620

9.2CRITICAL

Key Information:

Vendor

Qwikdev

Status
Qwik
Vendor
CVE Published:
9 July 2025

What is CVE-2025-53620?

The Qwik framework by Builder.io has a flaw that arises during the execution of Qwik Server Action QRLs, which dynamically load necessary files. When an invalid 'qfunc' parameter is provided, this results in an improperly handled error which causes the Node.js environment to crash, leading to potential service disruption. This issue has been addressed in version 1.13.0.

Affected Version(s)

qwik < 1.13.0

References

https://github.com/QwikDev/qwik/security/advisories/GHSA-...
x_refsource_CONFIRM

CVSS V4

Score:
9.2
Severity:
CRITICAL
Confidentiality:
None
Integrity:
None
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.
CVE-2025-53620 : Server Action Error Handling Flaw in Qwik Framework by Builder.io