A vulnerability has been found in Linux Mint Xreader up to 4.6.9. (CVE-2026-104983)
A path traversal vulnerability exists in Linux Mint Xreader up to version 4.6.9 in the function g_file_get_child within the PDF Attachment Saving Handler. This vulnerability allows remote attackers to manipulate the attachment argument to perform path traversal. The issue was reportedly closed by a maintainer due to EPUB support removal and reimplementation in another project, but code analysis suggests this may be a misunderstanding. The vulnerability has a CVSS score of 6.3 and has been publicly disclosed with exploit code available.
AI Analysis
Technical Summary
CVE-2026-104983 describes a path traversal vulnerability in Linux Mint Xreader versions up to 4.6.9. The flaw is located in the g_file_get_child function in shell/ev-window.c, specifically in the PDF Attachment Saving Handler component. Manipulating the attachment argument can lead to path traversal, potentially allowing unauthorized file system access. The vulnerability can be exploited remotely. Although a project maintainer marked the issue as resolved due to removal of EPUB support from Xreader, this closure may be based on a misunderstanding, and the vulnerability remains relevant. The CVSS 3.1 base score is 6.3, indicating a medium severity level.
Potential Impact
Successful exploitation of this vulnerability could allow an attacker to perform path traversal attacks remotely, potentially leading to unauthorized access or modification of files on the affected system. The CVSS vector indicates low complexity, no privileges required, and user interaction is required. Confidentiality, integrity, and availability impacts are all rated low.
Mitigation Recommendations
No official patch or fix is currently documented. The issue was closed by a maintainer citing removal of EPUB support and reimplementation in another project, but this may not fully mitigate the vulnerability. Users should monitor vendor advisories for updates. Until an official fix is released, cautious handling of PDF attachments in Xreader is advised.
A vulnerability has been found in Linux Mint Xreader up to 4.6.9. (CVE-2026-104983)
Description
A path traversal vulnerability exists in Linux Mint Xreader up to version 4.6.9 in the function g_file_get_child within the PDF Attachment Saving Handler. This vulnerability allows remote attackers to manipulate the attachment argument to perform path traversal. The issue was reportedly closed by a maintainer due to EPUB support removal and reimplementation in another project, but code analysis suggests this may be a misunderstanding. The vulnerability has a CVSS score of 6.3 and has been publicly disclosed with exploit code available.
CVSS v3.1
Score 6.3medium
Affected software
Run on your own infrastructure? Check whether these packages are installed with threat-finder — our free open-source scanner.
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-104983 describes a path traversal vulnerability in Linux Mint Xreader versions up to 4.6.9. The flaw is located in the g_file_get_child function in shell/ev-window.c, specifically in the PDF Attachment Saving Handler component. Manipulating the attachment argument can lead to path traversal, potentially allowing unauthorized file system access. The vulnerability can be exploited remotely. Although a project maintainer marked the issue as resolved due to removal of EPUB support from Xreader, this closure may be based on a misunderstanding, and the vulnerability remains relevant. The CVSS 3.1 base score is 6.3, indicating a medium severity level.
Potential Impact
Successful exploitation of this vulnerability could allow an attacker to perform path traversal attacks remotely, potentially leading to unauthorized access or modification of files on the affected system. The CVSS vector indicates low complexity, no privileges required, and user interaction is required. Confidentiality, integrity, and availability impacts are all rated low.
Mitigation Recommendations
No official patch or fix is currently documented. The issue was closed by a maintainer citing removal of EPUB support and reimplementation in another project, but this may not fully mitigate the vulnerability. Users should monitor vendor advisories for updates. Until an official fix is released, cautious handling of PDF attachments in Xreader is advised.
Technical Details
- Gcve Source
- db.gcve.eu
- Osv Id
- GHSA-63c6-qprh-g95r
- Osv Schema Version
- 1.4.0
- Aliases
- ["CVE-2026-104983"]
- Database Specific Severity
- LOW
- Cvss Version
- 3.1
- State
- PUBLISHED
Threat ID: 6ac13969a43b0b3b89d5fbae
Added to database: 10/03/2026, 17:20:41 UTC
Last enriched: 10/03/2026, 17:23:39 UTC
Last updated: 10/04/2026, 01:45:56 UTC
Views: 5
Community Reviews
0 reviewsCrowdsource mitigation strategies, share intel context, and vote on the most helpful responses. Sign in to add your voice and help keep defenders ahead.
Want to contribute mitigation steps or threat intel context? Sign in or create an account to join the community discussion.
Actions
Updates to AI analysis require Pro Console access. Upgrade inside Console → Billing.
Need more coverage?
Upgrade to Pro Console for AI refresh and higher limits.
For incident response and remediation, OffSeq services can help resolve threats faster.
Latest Threats
Check if your credentials are on the dark web
Instant breach scanning across billions of leaked records. Free tier available.