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CVE-2026-62683— File Browser: Trailing-slash delete leaves a stale public share behind

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，该漏洞源于目录共享清理路径调用DeleteWithPathPrefix(file.Path, userID)时Bolt后端在边界检查前对未规范化路径执行数据库前缀查询，导致通过尾部斜杠路径删除共享目录时未清除已存储的共享，如果相同路径被重新创建，过时的公共共享会暴露未来内容。

CVSS 3.1 · Low EPSS 0.32% · P22

Possible ATT&CK Techniques 1 AI

T1530 · Data from Cloud Storage

Affected Version Matrix 1

VendorProduct Version RangeStatus
filebrowser filebrowser < 2.63.17 affected
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I. Basic Information for CVE-2026-62683

Vulnerability Information
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Vulnerability Title
File Browser: Trailing-slash delete leaves a stale public share behind
Source: CVE Program / CVE List V5
Vulnerability Description
File Browser is a file managing interface for uploading, deleting, previewing, renaming, and editing files within a specified directory. Prior to 2.63.17, File Browser can leave a public directory share behind when the shared directory is deleted through a path with a trailing slash because the share cleanup path calls DeleteWithPathPrefix(file.Path, userID) and the Bolt backend performs the database prefix query with the unnormalized path before trimming the slash for boundary checks, so deleting /a/ does not delete the stored /a share and the stale public share exposes future content if the same path is recreated. This issue is fixed in version 2.63.17.
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，该漏洞源于目录共享清理路径调用DeleteWithPathPrefix(file.Path, userID)时Bolt后端在边界检查前对未规范化路径执行数据库前缀查询，导致通过尾部斜杠路径删除共享目录时未清除已存储的共享，如果相同路径被重新创建，过时的公共共享会暴露未来内容。
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 < 2.63.17 -

II. Public POCs for CVE-2026-62683

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III. Intelligence Information for CVE-2026-62683

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Patches & Fixes for CVE-2026-62683 (1)

Vendor Pages for CVE-2026-62683 (1)

Other References for CVE-2026-62683 (1)

Same Patch Batch · filebrowser · 2026-07-15 · 3 CVEs total

CVE-2026-62685 8.1 HIGH File Browser: Colliding username normalization gives two users the same home directory
CVE-2026-62843 6.8 MEDIUM File Browser: Archive builder turns backslash filenames into path traversal (zip-slip)

IV. Related Vulnerabilities

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

V. Comments for CVE-2026-62683

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