> CVE-2025-64343 [HIGH]

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PUBLISHED
2025-11-07 06:15
MODIFIED
2025-11-07 06:15
CVSS_SCORE V3
7.8
EPSS (Prob. Exploit)
0.13%
Top 97.5%
DATA SOURCES:
NVD 🔗 2025-11-07 CVE PROJECT 🔗 2026-01-19 CWE MITRE 🔗 2026-11-01 FIRST EPSS 🔗 2026-11-08 OSV 🔗 2026-11-08

> DESCRIPTION

(conda) Constructor is a tool that enables users to create installers for conda package collections. In versions 3.12.2 and below, the installation directory inherits permissions from its parent directory. Outside of restricted directories, the permissions are very permissive and often allow write access by authenticated users. Any logged in user can make modifications during the installation for both single-user and all-user installations. This constitutes a local attack vector if the installation is in a directory local users have access to. For single-user installations in a shared directory, these permissions persist after the installation. This issue is fixed in version 3.13.0.

> AFFECTED_PRODUCTS

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

> CVSS V3 METRICS

CVSS_VECTOR
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
EXPLOITABILITY
1.8
IMPACT
5.9

> MÉTRIQUES CVSS DÉTAILLÉES

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Métrique Valeur Interprétation
AV (Vecteur d'Attaque)
Attack Vector
Local (L)
Exploit nécessite un accès local au système
AC (Complexité d'Attaque)
Attack Complexity
Low (L)
Peu de conditions requises pour exploiter
PR (Privilèges Requis)
Privileges Required
Low (L)
Authentifié avec compte utilisateur basique
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
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-289

> CWE DETAILED DESCRIPTIONS

CWE-289: Authentication Bypass by Alternate Name - The product performs authentication based on the name of a resource being accessed, or the name of the actor performing the access, but it does not properly check all possible names for that resource or actor.

> OSV (GOOGLE OPEN SOURCE VULNERABILITIES)

(conda) Constructor: Excessive permissions during and after installation

AFFECTED PACKAGES:
Unknown / Unknown
63 versions affected
ALIASES:
GHSA-vvpr-2qg4-2mrq

> HISTORIQUE DES MODIFICATIONS

Première apparition
07/11/2025 06:15
Source: NVD
📊 ENRICHISSEMENT 19/01/2026 17:36
CVEPROJECT
Champ modifié: CVE Project
Ancienne valeur:
Non
Nouvelle valeur:
Oui
📊 ENRICHISSEMENT 01/12/2025 06:01
CWE
Champ modifié: Description CWE
Ancienne valeur:
N/A
Nouvelle valeur:
CWE-289: Authentication Bypass by Alternate Name - The product performs authentication based on the name of a resource being accessed, or the name of the actor performing the access, but it does not p...
Total des modifications: 2 Dernière mise à jour: 9 months ago

> REFERENCES

https://github.com/conda/constructor/commit/c368383710a7c2b81ad1b0ecb9724b38d357...
https://github.com/conda/constructor/releases/tag/3.13.0
https://github.com/conda/constructor/security/advisories/GHSA-vvpr-2qg4-2mrq
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