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CVE

CVE-2026-27971

Qwik vulnerable to Unauthenticated RCE via server$ Deserialization
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CVE

CVE-2026-27971

Qwik vulnerable to Unauthenticated RCE via server$ Deserialization

Summary

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.

Impact

  • Remote Code Execution

Package Versions Affected

Package Version
patch Availability
No items found.

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CVSS Version

Severity
Base Score
CVSS Version
Score Vector
C
H
U
9.2
-
4.0
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
C
H
U
0
-
C
H
U
-

Related Resources

No items found.

References

https://github.com/QwikDev/qwik/security/advisories/GHSA-p9x5-jp3h-96mm, https://nvd.nist.gov/vuln/detail/CVE-2026-27971, https://github.com/QwikDev/qwik, https://github.com/QwikDev/qwik/releases/tag/%40builder.io%2Fqwik%401.19.1

Severity

0

CVSS Score
0
10

Basic Information

Ecosystem
Base CVSS
0
EPSS Probability
0%
EPSS Percentile
0%
Introduced Version
0
Fix Available
1.19.1

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