CWE-346: Origin Validation Error

What is CWE-346?

CWE-346 is Origin Validation Error. The flaw arises when the product does not properly verify that the source of data or communication is valid. The database currently holds 184 vulnerabilities mapped to CWE-346 and 1 of them are in the CISA Known Exploited Vulnerabilities catalog.

Analyzing data...

OWASP TOP 10:2025 RANK7 — A07:2025 — Authentication Failures
Related CVES (365 days)184
AbstractionClass
Likelihood of exploit-

Vulnerabilities mapped to CWE-346

184 vulnerabilities1315% increase year over year

Vulnerabilities in CISA KEV for CWE-346

1 vulnerabilities

Official definition

ByMitre CWE

The product does not properly verify that the source of data or communication is valid.

Characteristics

Modes of introduction

  • Architecture and Design
  • Implementation: REALIZATION: This weakness is caused during implementation of an architectural security tactic.

Common consequences

ImpactScopeExplanation
Gain Privileges or Assume Identity, Varies by ContextAccess Control, OtherAn attacker can access any functionality that is inadvertently accessible to the source.

Detection methods

MethodApproachEffectiveness
Automated Static AnalysisAutomated 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.)-

Representative vulnerabilities

Sources (2)

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