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CVE-2026-104983— Linux Mint Xreader PDF Attachment Saving ev-window.c g_file_get_child path traversal

Quick assessment

Affected
Linux Mint Xreader
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

在 Linux Mint 的 Xreader 版本 4.6.9 及更低版本中发现了一个漏洞。受影响的组件是 PDF 附件保存处理器（PDF Attachment Saving Handler），具体涉及文件 中的 函数。对参数 attachment 的恶意操作可导致路径遍历漏洞。该漏洞可由远程发起攻击，并且漏洞利用代码已被公开，可被实际利用。 项目的一位维护者曾将该问题标记为“已解决”，理由是“Xreader 已移除 EPUB 支持，相关功能已重新实现在 Xepub 中”。然而，代码分析表明，这种判断可能是对实际情

CVSS 6.3 · Medium

Affected Version Matrix 10

VendorProduct Version RangeStatus
Linux Mint Xreader 4.6.0 affected
4.6.1 affected
4.6.2 affected
4.6.3 affected
4.6.4 affected
4.6.5 affected
4.6.6 affected
4.6.7 affected
… +2 more rows
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I. Basic Information for CVE-2026-104983

Vulnerability Information
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Vulnerability Title
Linux Mint Xreader PDF Attachment Saving ev-window.c g_file_get_child path traversal
Source: CVE Program / CVE List V5
Vulnerability Description
A vulnerability has been found in Linux Mint Xreader up to 4.6.9. Impacted is the function g_file_get_child of the file shell/ev-window.c of the component PDF Attachment Saving Handler. Such manipulation of the argument attachment leads to path traversal. The attack may be performed from remote. The exploit has been disclosed to the public and may be used. One of the project maintainers closed this issue as "completed", because "EPUB support was removed from Xreader and reimplemented in Xepub". Code analysis indicates that this might be a misunderstanding of the situation.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L
Source: CVE Program / CVE List V5
Vulnerability Type
对路径名的限制不恰当(路径遍历)
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
Linux Mint Xreader 4.6.0 cpe:2.3:o:linux_mint:xreader:*:*:*:*:*:*:*:*

II. Public POCs for CVE-2026-104983

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III. Intelligence Information for CVE-2026-104983

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Proof of Concept for CVE-2026-104983 (2)

IV. Related Vulnerabilities

Same product: Xreader
Same vendor: Linux Mint
Same weakness: CWE-22

V. Comments for CVE-2026-104983

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