> CVE-2026-25725 [HIGH]

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PUBLISHED
2026-02-06 18:16
MODIFIED
2026-02-06 18:16
CVSS_SCORE V3
7.7
EPSS (Prob. Exploit)
0.53%
Top 55.0%
DATA SOURCES:
NVD đź”— 2026-02-06 CWE MITRE đź”— 2026-11-01 FIRST EPSS đź”— 2026-11-08 GITHUB đź”— 2026-10-28 OSV đź”— 2026-11-08

> DESCRIPTION

Claude Code is an agentic coding tool. Prior to version 2.1.2, Claude Code's bubblewrap sandboxing mechanism failed to properly protect the .claude/settings.json configuration file when it did not exist at startup. While the parent directory was mounted as writable and .claude/settings.local.json was explicitly protected with read-only constraints, settings.json was not protected if it was missing. This allowed malicious code running inside the sandbox to create this file and inject persistent hooks (such as SessionStart commands) that would execute with host privileges when Claude Code was restarted. This issue has been patched in version 2.1.2.

> 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:P/PR:N/UI:P/VC:H/VI:H/VA:H/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:P/PR:N/UI:P/VC:H/VI:H/VA:H/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
Unknown (P)
Interaction inconnue
S (Périmètre)
Scope
Unchanged (U)
Impact reste dans le périmètre du composant compromis
C (Impact Confidentialité)
Confidentiality Impact
High (H)
Divulgation totale d'informations
I (Impact Intégrité)
Integrity Impact
High (H)
Modification totale des données possible
A (Impact Disponibilité)
Availability Impact
High (H)
Interruption totale du service possible

> RÉSUMÉ DES IMPACTS

Confidentialité
High
Divulgation totale d'informations
Intégrité
High
Modification totale des données possible
Disponibilité
High
Interruption totale du service possible

> WEAKNESSES

CWE-501 CWE-668

> CWE DETAILED DESCRIPTIONS

CWE-501: Trust Boundary Violation - The product mixes trusted and untrusted data in the same data structure or structured message. | CWE-668: Exposure of Resource to Wrong Sphere - The product exposes a resource to the wrong control sphere, providing unintended actors with inappropriate access to the resource.

> GITHUB SECURITY ADVISORY

GHSA-ff64-7w26-62rf HIGH

Claude Code has Sandbox Escape via Persistent Configuration Injection in settings.json

AFFECTED PACKAGES:
NPM / @anthropic-ai/claude-code
< 2.1.2
Fixed in: 2.1.2

> OSV (GOOGLE OPEN SOURCE VULNERABILITIES)

Claude Code Has Sandbox Escape via Persistent Configuration Injection in settings.json

AFFECTED PACKAGES:
Unknown / Unknown
5 versions affected
ALIASES:
GHSA-ff64-7w26-62rf

> HISTORIQUE DES MODIFICATIONS

Première apparition
06/02/2026 18:16
Source: NVD
đź“Š ENRICHISSEMENT 01/03/2026 06:46
CWE
Champ modifié: Description CWE
Ancienne valeur:
N/A
Nouvelle valeur:
CWE-501: Trust Boundary Violation - The product mixes trusted and untrusted data in the same data structure or structured message. | CWE-668: Exposure of Resource to Wrong Sphere - The product exposes...
Total des modifications: 1 Dernière mise à jour: 8 months ago

> REFERENCES

https://github.com/anthropics/claude-code/security/advisories/GHSA-ff64-7w26-62r...
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