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PUBLISHED

2026-02-06 21:16

MODIFIED

2026-02-06 21:57

CVSS_SCORE V3

8.2

EPSS (Prob. Exploit)

0.23%

Top 86.0%

DATA SOURCES:

NVD 🔗 2026-02-06 CWE MITRE 🔗 2026-11-01 FIRST EPSS 🔗 2026-11-08 OSV 🔗 2026-11-08

> DESCRIPTION

calibre is an e-book manager. In 9.1.0 and earlier, a path traversal vulnerability in Calibre's EPUB conversion allows a malicious EPUB file to corrupt arbitrary existing files writable by the Calibre process. During conversion, Calibre resolves CipherReference URI from META-INF/encryption.xml to an absolute filesystem path and opens it in read-write mode, even when it points outside the conversion extraction directory. This vulnerability is fixed in 9.2.0.

> 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:N/UI:R/S:C/C:N/I:H/A:H

EXPLOITABILITY

1.8

IMPACT

5.8

> MÉTRIQUES CVSS DÉTAILLÉES

                CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:N/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	None (N)	Aucune authentification requise
UI (Interaction Utilisateur) User Interaction	Required (R)	Nécessite une action utilisateur (clic lien, ouverture fichier, etc.)
S (Périmètre) Scope	Changed (C)	Impact s'étend au-delà 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	High (H)	Interruption totale du service possible

> RÉSUMÉ DES IMPACTS

Confidentialité

None

Aucune divulgation d'informations

Intégrité

High

Modification totale des données possible

Disponibilité

High

Interruption totale du service possible

> WEAKNESSES

CWE-22 CWE-73 CWE-94

> CWE DETAILED DESCRIPTIONS

CWE-22: Improper Limitation of a Pathname to a Restricted Directory - The product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory. | CWE-73: External Control of File Name or Path - The product allows user input to control or influence paths or file names that are used in filesystem operations. | CWE-94: Improper Control of Generation of Code - The product constructs all or part of a code segment using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the syntax or behavior of the intended code segment.

> OSV (GOOGLE OPEN SOURCE VULNERABILITIES)

calibre has a Path Traversal Leading to Arbitrary File Corruption and Code Execution

AFFECTED PACKAGES:

Unknown / Unknown

401 versions affected

ALIASES:

GHSA-8r26-m7j5-hm29

> HISTORIQUE DES MODIFICATIONS

Première apparition

06/02/2026 21:16

Source: NVD

📊 ENRICHISSEMENT 01/11/2026 06:58

CWE

Champ modifié: Description CWE

Ancienne valeur:

CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') - The product uses external input to construct a pathname that is intended to identify a file or directory that i...

Nouvelle valeur:

📊 ENRICHISSEMENT 01/03/2026 06:46

CWE