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CVE-2026-82236— File Browser 2.63.6 through 2.63.23 Share Link Exposure via File Deletion

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.

File Browser是File Browser组织的一款文件浏览管理软件。 File Browser 2.63.6版本至2.63.23版本存在资源管理错误漏洞，该漏洞源于当特权用户删除其他用户的共享文件时，系统未能清理相应的公共共享链接，导致攻击者可利用存留的共享链接，在无需身份验证的情况下访问同一路径下后续上传的无关内容。

CVSS 3.1 · Low EPSS 0.35% · P28

Affected Version Matrix 1

VendorProduct Version RangeStatus
filebrowser filebrowser 2.63.6≤ 2.63.23 affected
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I. Basic Information for CVE-2026-82236

Vulnerability Information
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Vulnerability Title
File Browser 2.63.6 through 2.63.23 Share Link Exposure via File Deletion
Source: CVE Program / CVE List V5
Vulnerability Description
File Browser versions from 2.63.6 through 2.63.23 fail to clean up public share links when a privileged user deletes another user's shared file. Attackers can access the surviving share link to retrieve new unrelated content uploaded to the same path without authentication.
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
清理环节不完整
Source: CVE Program / CVE List V5
Vulnerability Title
File Browser 资源管理错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
File Browser是File Browser组织的一款文件浏览管理软件。 File Browser 2.63.6版本至2.63.23版本存在资源管理错误漏洞，该漏洞源于当特权用户删除其他用户的共享文件时，系统未能清理相应的公共共享链接，导致攻击者可利用存留的共享链接，在无需身份验证的情况下访问同一路径下后续上传的无关内容。
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 2.63.6 ~ 2.63.23 -

II. Public POCs for CVE-2026-82236

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III. Intelligence Information for CVE-2026-82236

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Vendor Advisories for CVE-2026-82236 (2)

Same Patch Batch · filebrowser · 2026-08-28 · 4 CVEs total

CVE-2026-82235 5.9 MEDIUM filebrowser through 2.63.23 Denial of Service via named pipes
CVE-2026-82238 3.1 LOW filebrowser 2.24.0 Race Condition via TUS concurrent PATCH uploads
CVE-2026-82237 3.1 LOW filebrowser through 2.63.23 Stale Share Link via File Rename

IV. Related Vulnerabilities

Same product: filebrowser
Same vendor: filebrowser
Same weakness: CWE-459