> CVE-2026-102673 [HIGH]

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PUBLISHED
2026-09-29 17:17
MODIFIED
2026-09-29 17:17
CVSS_SCORE V3
8.2
EPSS (Prob. Exploit)
0.13%
Top 97.5%
DATA SOURCES:
NVD 🔗 2026-09-29 RED HAT 🔗 2026-10-04 CWE MITRE 🔗 2026-10-01 FIRST EPSS 🔗 2026-10-21 GITHUB 🔗 2026-10-06 OSV 🔗 2026-10-19

> DESCRIPTION

Electron is a framework for writing cross-platform desktop applications using JavaScript, HTML and CSS. Prior to 41.10.4, 42.5.2, and 43.0.0, popups opened from a sandboxed iframe through Electron's OpenURLFromTab navigation path, including links using target="_blank" or a middle-click, did not receive the inherited HTML sandbox restrictions. An untrusted iframe using the allow-scripts allow-popups configuration could therefore open a popup with the embedding application's full origin, exposing that origin's cookies, storage, and same-origin scripting capabilities. Applications that do not embed untrusted content in sandboxed iframes are not affected. This issue is fixed in versions 41.10.4, 42.5.2, and 43.0.0.

> 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:N/AC:L/PR:N/UI:R/S:C/C:H/I:L/A:N
EXPLOITABILITY
2.8
IMPACT
4.7

> MÉTRIQUES CVSS DÉTAILLÉES

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/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
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
High (H)
Divulgation totale 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
High
Divulgation totale d'informations
Intégrité
Low
Modification limitée des données possible
Disponibilité
None
Aucune interruption de service

> WEAKNESSES

CWE-346 CWE-693

> CWE DETAILED DESCRIPTIONS

CWE-346: Origin Validation Error - The product does not properly verify that the source of data or communication is valid. | CWE-693: Protection Mechanism Failure - The product does not use or incorrectly uses a protection mechanism that provides sufficient defense against directed attacks against the product.

> RED HAT SEVERITY ASSESSMENT

THREAT SEVERITY
Important

> GITHUB SECURITY ADVISORY

GHSA-hq2x-r82h-9wj4 HIGH

Electron drops inherited HTML sandbox restrictions for popups opened through OpenURLFromTab

AFFECTED PACKAGES:
NPM / electron
>= 43.0.0-alpha.1, < 43.0.0
Fixed in: 43.0.0
NPM / electron
>= 42.0.0-alpha.1, < 42.5.2
Fixed in: 42.5.2
NPM / electron
< 41.10.4
Fixed in: 41.10.4

> OSV (GOOGLE OPEN SOURCE VULNERABILITIES)

Electron drops inherited HTML sandbox restrictions for popups opened through OpenURLFromTab

AFFECTED PACKAGES:
Unknown / Unknown
2097 versions affected
ALIASES:
GHSA-hq2x-r82h-9wj4

> HISTORIQUE DES MODIFICATIONS

Première apparition
29/09/2026 17:17
Source: NVD
📊 ENRICHISSEMENT 04/10/2026 05:02
REDHAT
Champ modifié: Sévérité Red Hat
Ancienne valeur:
N/A
Nouvelle valeur:
{ "threat_severity": "Important", "severity_scale": null }
📊 ENRICHISSEMENT 04/10/2026 05:02
REDHAT
Champ modifié: Red Hat
Ancienne valeur:
Non
Nouvelle valeur:
Oui
📊 ENRICHISSEMENT 01/10/2026 06:01
CWE
Champ modifié: Description CWE
Ancienne valeur:
N/A
Nouvelle valeur:
CWE-346: Origin Validation Error - The product does not properly verify that the source of data or communication is valid. | CWE-693: Protection Mechanism Failure - The product does not use or incorre...
Total des modifications: 3 Dernière mise à jour: 2 weeks ago

> REFERENCES

https://github.com/electron/electron/commit/7ea14d5f55ecb11a30447701ddca16b3feee...
https://github.com/electron/electron/commit/e26b2640e7795c42bfb111b76009cbb4327c...
https://github.com/electron/electron/commit/ebe1165ee2b05c203c26dd2244ef1c5b9b1c...
https://github.com/electron/electron/pull/52133
https://github.com/electron/electron/releases/tag/v41.10.4
https://github.com/electron/electron/releases/tag/v42.5.2
https://github.com/electron/electron/releases/tag/v43.0.0
https://github.com/electron/electron/security/advisories/GHSA-hq2x-r82h-9wj4
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