CVE WatchJul 8, 2026

CVE-2026-55408

Koodo Reader is an ebook reader. In version 2.3.0 and earlier, Koodo Reader is vulnerable to remote code execution through malicious EPUB fi

CVSS

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No CVSS

EPSS

0.2%

KEV

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Exploit Today

0-100

Published: Jul 7, 2026 · Last modified: Jul 8, 2026 · CWE-94

EPSS · 30d

0.2%EPSS · 30 days0.2%

2026-07-082026-07-17

Technical 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.

Official references

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