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2.1

Linux Mint Xreader can be tricked into reading any file

CVE-2026-104982 · published 16 days ago
Summary

The Xreader document viewer in Linux Mint (versions up to 4.6.5) can be made to open files outside its intended folder when handling EPUB files. This could let someone who sends a specially crafted EPUB cause the program to access or disclose other files on the system. Updating Xreader to version 4.6.6 or later resolves the problem, so apply the update as soon as possible.

What to do

The CVE record does not list a fixed version. Check the vendor's site or the advisory links below - a fix may already be released.

Affected software
VendorProductAffected versions
linux mint xreader 4.6.0
Original advisory text
Linux Mint Xreader EPUB File epub-document.c g_strdup_printf path traversal
A flaw has been found in Linux Mint Xreader up to 4.6.5. This issue affects the function setup_document_content_list/g_strdup_printf of the file backend/epub/epub-document.c of the component EPUB File Handler. This manipulation causes path traversal. The attack is possible to be carried out remotely. The exploit has been published and may be used. Upgrading to version 4.6.6 is capable of addressing this issue. Patch name: a5aecea074e8564b7a22f1ce054b31ec862974b7. It is advisable to upgrade the affected component. One of the project maintainers explains, that "EPUB support was removed from Xreader and reimplemented in Xepub".
References
Fix within
Internet-facing 60 days
Internal At next upgrade
  • Not known to be exploited
  • Needs hands-on effort to exploit
  • Gives an attacker partial control
Severity
2.1 Low
Exploitation
<1% chance of attack within 30 days
Type
CWE-22Path Traversal
Timeline
Published3 Oct 2026
Updated15 Oct 2026
First seen3 Oct 2026
Sources
CVE-2026-104982 · NVD
CVE-2026-104982 · MITRE
CVE-2026-104982 · OSV
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