> CVE-2026-27810 [MEDIUM]

« BACK_TO_HOME
PUBLISHED
2026-02-27 20:21
MODIFIED
2026-02-27 20:21
CVSS_SCORE V3
6.4
EPSS (Prob. Exploit)
0.33%
Top 75.6%
DATA SOURCES:
NVD 🔗 2026-02-27 CWE MITRE 🔗 2026-11-01 FIRST EPSS 🔗 2026-10-25 OSV 🔗 2026-03-05

> DESCRIPTION

calibre is a cross-platform e-book manager for viewing, converting, editing, and cataloging e-books. Prior to version 9.4.0, an HTTP Response Header Injection vulnerability in the calibre Content Server allows any authenticated user to inject arbitrary HTTP headers into server responses via an unsanitized `content_disposition` query parameter in the `/get/` and `/data-files/get/` endpoints. All users running the calibre Content Server with authentication enabled are affected. The vulnerability is exploitable by any authenticated user and can also be triggered by tricking an authenticated victim into clicking a crafted link. Version 9.4.0 contains a fix for the issue.

> 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:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N
EXPLOITABILITY
3.1
IMPACT
2.7

> MÉTRIQUES CVSS DÉTAILLÉES

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N
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
Low (L)
Authentifié avec compte utilisateur basique
UI (Interaction Utilisateur)
User Interaction
None (N)
Aucune interaction utilisateur nécessaire
S (Périmètre)
Scope
Changed (C)
Impact s'étend au-delà du composant compromis
C (Impact Confidentialité)
Confidentiality Impact
Low (L)
Divulgation limitée d'informations
I (Impact Intégrité)
Integrity Impact
Low (L)
Modification limitée des données possible
A (Impact Disponibilité)
Availability Impact
None (N)
Aucune interruption de service

> RÉSUMÉ DES IMPACTS

Confidentialité
Low
Divulgation limitée d'informations
Intégrité
Low
Modification limitée des données possible
Disponibilité
None
Aucune interruption de service

> WEAKNESSES

CWE-113

> CWE DETAILED DESCRIPTIONS

CWE-113: Improper Neutralization of CRLF Sequences in HTTP Headers - The product receives data from an HTTP agent/component (e.g., web server, proxy, browser, etc.), but it does not neutralize or incorrectly neutralizes CR and LF characters before the data is included in outgoing HTTP headers.

> OSV (GOOGLE OPEN SOURCE VULNERABILITIES)

calibre Vulnerable to HTTP Response Header Injection

AFFECTED PACKAGES:
Unknown / Unknown
405 versions affected
ALIASES:
GHSA-5fpj-fxw7-8grw

> HISTORIQUE DES MODIFICATIONS

Première apparition
27/02/2026 20:21
Source: NVD
📊 ENRICHISSEMENT 01/11/2026 06:58
CWE
Champ modifié: Description CWE
Ancienne valeur:
CWE-113: Improper Neutralization of CRLF Sequences in HTTP Headers ('HTTP Request/Response Splitting') - The product receives data from an HTTP agent/component (e.g., web server, proxy, browser, etc.)...
Nouvelle valeur:
CWE-113: Improper Neutralization of CRLF Sequences in HTTP Headers - The product receives data from an HTTP agent/component (e.g., web server, proxy, browser, etc.), but it does not neutralize or inco...
📊 ENRICHISSEMENT 01/03/2026 06:46
CWE
Champ modifié: Description CWE
Ancienne valeur:
N/A
Nouvelle valeur:
CWE-113: Improper Neutralization of CRLF Sequences in HTTP Headers ('HTTP Request/Response Splitting') - The product receives data from an HTTP agent/component (e.g., web server, proxy, browser, etc.)...
Total des modifications: 2 Dernière mise à jour: 1 week ago

> REFERENCES

https://github.com/kovidgoyal/calibre/security/advisories/GHSA-5fpj-fxw7-8grw
« BACK_TO_HOME