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PUBLISHED

2026-08-11 20:17

MODIFIED

2026-08-11 20:17

CVSS_SCORE V3

8.7

EPSS (Prob. Exploit)

0.44%

Top 62.4%

DATA SOURCES:

NVD 🔗 2026-08-11 CWE MITRE 🔗 2026-11-01 FIRST EPSS 🔗 2026-10-25 GITHUB 🔗 2026-10-29 OSV 🔗 2026-08-18

> DESCRIPTION

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.

> AFFECTED_PRODUCTS

ℹ️ Aucun produit affecté n'a encore été publié par NVD pour cette CVE.

> CVSS V3 METRICS

CVSS_VECTOR

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

> MÉTRIQUES CVSS DÉTAILLÉES

                CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
            

Métrique	Valeur	Interprétation
AV (Vecteur d'Attaque) Attack Vector	Network (N)	Exploit possible à distance via réseau (HTTP, API, etc.)
AC (Complexité d'Attaque) Attack Complexity	Low (L)	Peu de conditions requises pour exploiter
PR (Privilèges Requis) Privileges Required	None (N)	Aucune authentification requise
UI (Interaction Utilisateur) User Interaction	None (N)	Aucune interaction utilisateur nécessaire
S (Périmètre) Scope	Unchanged (U)	Impact reste dans le périmètre du composant compromis
C (Impact Confidentialité) Confidentiality Impact	None (N)	Aucune divulgation d'informations
I (Impact Intégrité) Integrity Impact	High (H)	Modification totale des données possible
A (Impact Disponibilité) Availability Impact	None (N)	Aucune interruption de service

> RÉSUMÉ DES IMPACTS

Confidentialité

None

Aucune divulgation d'informations

Intégrité

High

Modification totale des données possible

Disponibilité

None

Aucune interruption de service

> WEAKNESSES

CWE-74

> CWE DETAILED DESCRIPTIONS

CWE-74: Improper Neutralization of Special Elements in Output Used by a Downstream Component - The product constructs all or part of a command, data structure, or record using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify how it is parsed or interpreted when it is sent to a downstream component.

> GITHUB SECURITY ADVISORY

GHSA-4c3c-r6p8-c863 HIGH

Flawfinder output manipulation via untrusted filenames and source text

AFFECTED PACKAGES:

PIP / flawfinder

< 2.0.20

Fixed in: 2.0.20

> OSV (GOOGLE OPEN SOURCE VULNERABILITIES)

Flawfinder output manipulation via untrusted filenames and source text

AFFECTED PACKAGES:

Unknown / Unknown

23 versions affected

ALIASES:

GHSA-4c3c-r6p8-c863, PYSEC-2026-2480

> HISTORIQUE DES MODIFICATIONS

Première apparition

11/08/2026 20:17

Source: NVD

📊 ENRICHISSEMENT 01/11/2026 06:59

CWE

Champ modifié: Description CWE

Ancienne valeur:

CWE-74: Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection') - The product constructs all or part of a command, data structure, or record using externally...

Nouvelle valeur:

📊 ENRICHISSEMENT 01/09/2026 06:02

CWE