CWEweakness

CWE-1108 Excessive Reliance on Global Variables

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Abstraction
Base
Structure
Simple
Status
Incomplete
Languages
Not Language-Specific
CWE version
5.0

Description

The code is structured in a way that relies too much on using or setting global variables throughout various points in the code, instead of preserving the associated information in a narrower, more local context.

Common consequences

• Other: Reduce Maintainability, Increase Analytical Complexity — This issue makes it more difficult to maintain the product, which indirectly affects security by making it more difficult or time-consuming to find and/or fix vulnerabilities. It also might make it easier to introduce vulnerabilities.

Detection methods

• Automated Static Analysis: Automated static analysis, commonly referred to as Static Application Security Testing (SAST), can find some instances of this weakness by analyzing source code (or binary/compiled code) without having to execute it. Typically, this is done by building a model of data flow and control flow, then searching for potentially-vulnerable patterns that connect "sources" (origins of input) with "sinks" (destinations where the data interacts with external components, a lower layer such as the OS, etc.)

Related

Child of · CWE (1)

  • CWE-1076 Insufficient Adherence to Expected Conventions weakness

Referenced by CVE · weakness (3)

  • CVE-2026-32841 Edimax GS-5008PL firmware versions 1.00.54 and prior contain an authentication bypass vulnerability that allows unauthenticated attackers… vulnerability
  • CVE-2024-47827 Argo Workflows is an open source container-native workflow engine for orchestrating parallel jobs on Kubernetes. vulnerability
  • CVE-2022-2642 Horner Automation’s RCC 972 firmware version 15.40 contains global variables. vulnerability