Security Advisory

CVE-2026-55408

CVE vulnerability detail - eXtreme Datacenter Security Operations

Published 2026-07-07 21:02:43

Last updated 2026-07-08 14:08:02

Assigner GitHub_M

CVSS score 8.4

State PUBLISHED

Description

Koodo Reader is an ebook reader. In version 2.3.0 and earlier, Koodo Reader is vulnerable to remote code execution through malicious EPUB files because the open-book IPC handler enables nodeIntegrationInSubFrames and EPUB chapter content is rendered with unsanitized innerHTML. An attacker can craft an EPUB book that, when imported and opened by the victim, instantiates a hidden iframe with Node.js API access and executes arbitrary operating system commands with the victim user's privileges. This issue is fixed in version 2.3.1.

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