Is this vulnerability remotely exploitable over the internet?

Yes. Any Qwik server exposing the vulnerable server$ RPC endpoints over HTTP and reachable from an attacker-controlled network is susceptible to remote exploitation without prior authentication.

Does an attacker need valid credentials or special roles to exploit this?

No. The issue can be triggered by an unauthenticated requester, provided they can send a crafted HTTP request to an affected server$ endpoint.

What is the safest general fix pattern for developers?

The safest pattern is to redesign server$ RPC usage so that it only accepts well-defined, primitive data structures validated against strict schemas, and to remove any indirect influence of deserialized data over dynamic module loading, reflection, or other code-execution mechanisms on the server.

Severity:

CRITICAL RISK

(9.8)

Unsafe Server-side Deserialization (CWE-502) in Qwik server$ RPC Mechanism

CVE-2026-27971

Published:

Mar 3, 2026

Status:

Analyzed

Summary

Affected Context

Exploit Preconditions

Why This Happens

Potential Impact

General Mitigation Guidance

How Teams Detect Issues Like This

Frequently Asked Questions

Source

NDV

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Remote Code Execution

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CRITICAL RISK

CRITICAL

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SQL Injection via PostgreSQL Array/Row Expressions (CWE-89) in WeKnora Query Engine

Remote Code Execution via SQL Injection on the Database Server

March 7, 2026

Vulnerability Type

Category:

Unsafe Deserialization

CWE:

CWE-502

Impact:

Remote Code Execution

Severity:

CRITICAL RISK

(9.8)

CVSS Version:

3.1

Vulnerability Type

Category:

Unsafe Deserialization

CWE:

CWE-502

Impact:

Remote Code Execution

Severity:

CRITICAL RISK

(9.8)

CVSS Version:

3.1

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Unsafe Server-side Deserialization (CWE-502) in Qwik server$ RPC Mechanism

Summary

Affected Context

Exploit Preconditions

Why This Happens

Potential Impact

General Mitigation Guidance

How Teams Detect Issues Like This

Frequently Asked Questions

Source

Recent Vulnerabilities

CRITICAL RISK

CRITICAL

(9.9)

Command Injection in MCP Stdio Configuration Validation (CWE-78) in WeKnora

CRITICAL RISK

CRITICAL

(9.9)

SQL Injection via PostgreSQL Array/Row Expressions (CWE-89) in WeKnora Query Engine

Vulnerability Type

Vulnerability Type

Vulnerability Type

Catch This CVE While Code Is Being Written

Ship clean & secure code faster

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