CVE-2026-104982: 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 setupdocumentcontentlist/gstrdupprintf 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".
Affected Software
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Upgrade
Upgrade
Linux Mint Xreaderto a version that resolves this vulnerability.Fixed in 4.6.6Patch a5aecea074e8564b7a22f1ce054b31ec862974b7
Event History
Frequently Asked Questions
Which deployments are affected?
Linux Mint Xreader versions up to 4.6.5 are affected through the EPUB File Handler. Version 4.6.6 addresses the issue.
What does an attacker need to exploit this issue?
The attack can be carried out remotely and requires user interaction, as reflected by the UI:R vector. No privileges are required.
Is there evidence that exploitation is practical?
Yes. The exploit has been published and may be used.
What should teams do if they cannot immediately upgrade?
The provided data recommends upgrading the affected component to version 4.6.6. It also states that EPUB support was removed from Xreader and reimplemented in Xepub, but does not provide a separate mitigation procedure.