CWEweakness

CWE-550 Server-generated Error Message Containing Sensitive Information

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

Description

Certain conditions, such as network failure, will cause a server error message to be displayed.

Common consequences

• Confidentiality: Read Application Data — An attacker could steal the sensitive information and/or use it to launch further attacks.

Potential mitigations

• [Architecture and Design, System Configuration] Recommendations include designing and adding consistent error handling mechanisms which are capable of handling any user input to your web application, providing meaningful detail to end-users, and preventing error messages that might provide information useful to an attacker from being displayed.

Related

Child of · CWE (1)

  • CWE-209 Generation of Error Message Containing Sensitive Information weakness

Referenced by CVE · weakness (5)

  • CVE-2026-101915 @grpc/grpc-js implements the core functionality of gRPC purely in JavaScript, without a C++ addon. vulnerability
  • CVE-2025-36419 IBM ApplinX 11.1 could disclose sensitive information about server architecture that could aid in further attacks against the system. vulnerability
  • CVE-2025-62168 Squid is a caching proxy for the Web. vulnerability
  • CVE-2023-5617 Hitachi Vantara Pentaho Data Integration & Analytics versions before 10.1.0.0 and 9.3.0.6, including 9.5.x and 8.3.x, display the version… vulnerability
  • CVE-2023-40726 A vulnerability has been identified in QMS Automotive (All versions < V12.39). vulnerability

Referenced by OWASP · mapped cwe (1)

  • A10:2025 Mishandling of Exceptional Conditions Top 10 2025