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Description

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.

PUBLISHED Reserved 2026-02-25 | Published 2026-03-03 | Updated 2026-03-04 | Assigner GitHub_M




CRITICAL: 9.2CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

Problem types

CWE-502: Deserialization of Untrusted Data

Product status

< 1.19.1
affected

References

github.com/...v/qwik/security/advisories/GHSA-p9x5-jp3h-96mm

cve.org (CVE-2026-27971)

nvd.nist.gov (CVE-2026-27971)

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