5.4

CVE-2026-70610

Electron: contextBridge object copy honors prototype setters

Electron is a framework for writing cross-platform desktop applications using JavaScript, HTML and CSS. Prior to 39.8.9, 40.9.2, 41.2.2, and 42.0.0-beta.4, objects copied across the contextBridge boundary from untrusted content could carry an attacker-influenced prototype, enabling prototype-pollution-style attacks against preload code despite context isolation being enabled. Apps are only affected if their preload code accepts object arguments from untrusted content and reads properties from them without own-property checks, while apps that only accept primitive arguments or validate object arguments are not affected. This issue is fixed in 39.8.9, 40.9.2, 41.2.2, and 42.0.0-beta.4.
Daten sind bereitgestellt durch das CVE Programm von einer CVE Numbering Authority (CNA) (Unstrukturiert).
Herstellerelectron
≫
Produkt electron
Version < 39.8.9
Status affected
Version >= 40.0.0-alpha.1, < 40.9.2
Status affected
Version >= 41.0.0-alpha.1, < 41.2.2
Status affected
Version >= 42.0.0-alpha.1, < 42.0.0-beta.4
Status affected
VulnDex Vulnerability Enrichment
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Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.38% 0.31
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
security-advisories@github.com 5.4 2.2 2.7
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:L/I:L/A:N
CWE-1321 Improperly Controlled Modification of Object Prototype Attributes ('Prototype Pollution')

The product receives input from an upstream component that specifies attributes that are to be initialized or updated in an object, but it does not properly control modifications of attributes of the object prototype.

https://github.com/electron/electron/security/advisories/GHSA-ff2p-hmqr-hxm4
https://github.com/electron/electron/pull/51083
https://github.com/electron/electron/pull/51084
https://github.com/electron/electron/pull/51085
https://github.com/electron/electron/pull/51086
https://github.com/electron/electron/commit/17d5d26499cd279fab48f5f26527f8edc02a7713
https://github.com/electron/electron/commit/23a6efb714dec80e2cf45d3054d18d701162e4dd
https://github.com/electron/electron/commit/4ac50292d552fb510eb778392620c85308770a55
https://github.com/electron/electron/commit/5b699544cbbed51bedb7c60d75c8c42be5825737
https://github.com/electron/electron/releases/tag/v39.8.9
https://github.com/electron/electron/releases/tag/v40.9.2
https://github.com/electron/electron/releases/tag/v41.2.2
https://github.com/electron/electron/releases/tag/v42.0.0-beta.4