Bug 2514323 (CVE-2026-48813)

Summary: CVE-2026-48813 flawfinder: output manipulation via untrusted filenames and source text
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerabilityAssignee: Product Security <prodsec-ir-bot>
Status: NEW --- QA Contact:
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Priority: high    
Version: unspecifiedKeywords: Security
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OS: Linux   
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A flaw was found in Flawfinder. An improper input neutralization issue leads to output manipulation, specifically, terminal/ANSI escape sequence injection and XML injection. A malicious filename can inject arbitrary content in the terminal output and improperly sanitized fields (such as filenames, categories or code context text) can corrupt CSV formats or inject XML attributes in SonarQube outputs.
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Bug Depends On: 2514994    
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Description OSIDB Bzimport 2026-08-11 19:31:38 UTC 
Flawfinder is a a static analysis tool for finding vulnerabilities in C/C++ source code. Versions prior to 2.0.20 have an improper input neutralization issue leading to output manipulation, specifically, Terminal/ANSI Escape Sequence Injection and XML Injection. A malicious file whose name contains ANSI escape sequences can end up being included in flawfinder's standard terminal output, with many effects. Untrusted fields (such as filenames, categories, or code context text) were not properly sanitized when generating structured reports. An attacker could exploit this to corrupt CSV formats or inject arbitrary XML attributes into SonarQube outputs via output_sonar(). It impacts those who use flawfinder to evaluate intentionally malicious filenames or file contents. This issue has been fully patched in Version 2.0.20 (released 2026-05-16). There is no configuration-based workaround within older versions of flawfinder. If an immediate upgrade is not possible, users can mitigate the risk by pre-scanning filenames, inspecting raw output, and/or restricting untrusted inputs.