CVE-2026-27971

Qwik affected by unauthenticated RCE via server$ Deserialization

Published Mar 3, 2026 CVSS 4.0 · 9.2 Critical EPSS 5.5% KEV · Not listed
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.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

Source ID Title
Github GHSA Github GHSA GHSA-p9x5-jp3h-96mm Qwik vulnerable to Unauthenticated RCE via server$ Deserialization
History
Type Values Removed Values Added
First Time appeared Qwik
Qwik qwik
CPEs cpe:2.3:a:qwik:qwik:*:*:*:*:*:node.js:*:*
Vendors & Products Qwik
Qwik qwik
Metrics cvssV3_1

{'score': 9.8, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H'}

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}

Type Values Removed Values Added
First Time appeared Qwikdev
Qwikdev qwik
Vendors & Products Qwikdev
Qwikdev qwik
Type Values Removed Values Added
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.
Title Qwik affected by unauthenticated RCE via server$ Deserialization
Weaknesses CWE-502
References
Metrics cvssV4_0

{'score': 9.2, 'vector': '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'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
GitHub_M
Published
Updated
Mar 4, 2026, 4:05 PM
Reserved
Feb 25, 2026, 3:24 AM
Status
Analyzed
Published
Mar 3, 2026, 11:15 PM
Modified
Jun 17, 2026, 10:27 AM