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CodeSonar® 9.2p0 CONFIDENTIAL CodeSecure Inc
Java


JAVA.IO.INJ.FMT : Format String Injection (Java)

Summary

Tainted data flows into a string format instruction.

Checks for this class use the CodeSonar Java taint analysis. See Taint Tracking for CodeSonar Java Warning Classes for more information on this analysis, including lists of the methods that CodeSonar automatically recognizes as relevant and information about specifying additional methods that CodeSonar should recognize as taint sources, sinks, or sanitizers.

Use configuration parameter JAVA_ANALYSIS_ADVANCED_INJECTION to specify the level of checking to perform for this and other taint-related warning classes:

Properties

Class Name Format String Injection (Java)
Significance security
Mnemonic JAVA.IO.INJ.FMT
Categories
CWE CWE:134 Use of Externally-Controlled Format String
OWASP-2017 OWASP-2017:A1 Injection
OWASP-2021 OWASP-2021:A3 Injection
OWASP-2025 OWASP-2025:A05 Injection
Availability Available for Java and Kotlin.
Enabling Checks for this warning class are enabled by default. To disable them, add the following WARNING_FILTER rule to the project configuration file.
WARNING_FILTER += discard class="Format String Injection (Java)"

Resolution

Verify that a security error actually corresponds to unconstrained information flow from source locations into sink locations. If this is the case, add a sanitizing algorithm to clean data before it flows into sinks, or use safe statements to propagate data inside the program.

Relevant Configuration File Parameters

The following configuration file parameters affect checks for this warning class.

 

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