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CVE-2026-61874— filebrowser before 2.63.17 Stale Public Share via Trailing-Slash Delete

Quick assessment

Affected
filebrowser filebrowser
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.

FileBrowser是filebrowser团队开源的一个文件管理界面，在指定的目录，它可以用来上传、删除、预览和编辑文件。 filebrowser 2.63.17之前版本存在授权问题漏洞，该漏洞源于在DeleteWithPathPrefix中查询共享索引前未能正常化路径，可能导致经过身份验证的攻击者使用尾部斜杠路径删除共享目录，然后重新创建相同目录，从而通过休眠的公共共享URL暴露新内容。

CVSS 3.1 · Low EPSS 0.32% · P22

Affected Version Matrix 2

VendorProduct Version RangeStatus
filebrowser filebrowser < 2.63.17 affected
2.63.17 unaffected
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I. Basic Information for CVE-2026-61874

Vulnerability Information
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Vulnerability Title
filebrowser before 2.63.17 Stale Public Share via Trailing-Slash Delete
Source: CVE Program / CVE List V5
Vulnerability Description
filebrowser versions before 2.63.17 fail to normalize paths before querying the share index in DeleteWithPathPrefix, allowing authenticated users to leave stale public shares behind. Attackers can delete a shared directory using a trailing-slash path, then recreate the same directory to expose new contents through the dormant public share URL.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
授权机制不正确
Source: CVE Program / CVE List V5
Vulnerability Title
filebrowser 授权问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
FileBrowser是filebrowser团队开源的一个文件管理界面，在指定的目录，它可以用来上传、删除、预览和编辑文件。 filebrowser 2.63.17之前版本存在授权问题漏洞，该漏洞源于在DeleteWithPathPrefix中查询共享索引前未能正常化路径，可能导致经过身份验证的攻击者使用尾部斜杠路径删除共享目录，然后重新创建相同目录，从而通过休眠的公共共享URL暴露新内容。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
filebrowser filebrowser 0 ~ 2.63.17 -

II. Public POCs for CVE-2026-61874

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III. Intelligence Information for CVE-2026-61874

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Patches & Fixes for CVE-2026-61874 (1)

Vendor Advisories for CVE-2026-61874 (1)

Other References for CVE-2026-61874 (1)

IV. Related Vulnerabilities

Same product: filebrowser
Same vendor: filebrowser
Same weakness: CWE-863

V. Comments for CVE-2026-61874

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