CVE-2026-27971

critical · 9.2

A public exploit / detection template exists

Weaponised detection is publicly available, which meaningfully raises real-world risk regardless of CVSS. nuclei-templates →

Qwik is a performance focused javascript framework. qwik <=1.19.0 is vulnerable to RCE due to an unsafe deserialization vulnerability in the server$ RPC mechanism that allows any unauthenticated user to execute arbitrary code on the server with a single HTTP request. Affects any deployment where require() is available at runtime. This vulnerability is fixed in 1.19.1.

9.2

CVSS

5.4%

EPSS (exploit prob.)

92nd

EPSS percentile

2026-03-03

Published

CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Weaknesses

CWE-502

Affected products

Vendor	Product	Affected versions
qwik	qwik	< 1.19.1

Check a specific version with /api/v1/cve/match.

References

https://github.com/QwikDev/qwik/security/advisories/GHSA-p9x5-jp3h-96mm

Query this programmatically:

curl https://evil-db.io/api/v1/cve/CVE-2026-27971