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CVE-2026-82235— filebrowser through 2.63.23 Denial of Service via named pipes

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 2.63.23及之前版本存在资源管理错误漏洞，该漏洞源于目录归档和公共下载处理程序未验证命名管道，可能允许经身份验证的用户或通过公共分享链接的匿名访客重复请求包含命名管道的归档，触发阻塞式打开系统调用，固定服务器goroutine并耗尽连接资源。

CVSS 5.9 · Medium EPSS 0.52% · P43

Affected Version Matrix 1

VendorProduct Version RangeStatus
filebrowser filebrowser ≤ 2.63.23 affected
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I. Basic Information for CVE-2026-82235

Vulnerability Information
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Vulnerability Title
filebrowser through 2.63.23 Denial of Service via named pipes
Source: CVE Program / CVE List V5
Vulnerability Description
filebrowser through 2.63.23 fails to validate named pipes in directory archive and public download handlers, allowing attackers to trigger blocking open syscalls. Authenticated users or anonymous visitors with public share links can repeatedly request archives containing named pipes to pin server goroutines and exhaust connection resources.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
未加控制的资源消耗(资源穷尽)
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 2.63.23及之前版本存在资源管理错误漏洞，该漏洞源于目录归档和公共下载处理程序未验证命名管道，可能允许经身份验证的用户或通过公共分享链接的匿名访客重复请求包含命名管道的归档，触发阻塞式打开系统调用，固定服务器goroutine并耗尽连接资源。
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 ~ 2.63.23 -

II. Public POCs for CVE-2026-82235

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III. Intelligence Information for CVE-2026-82235

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Patches & Fixes for CVE-2026-82235 (1)

Vendor Advisories for CVE-2026-82235 (2)

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

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
CVE-2026-82236 3.1 LOW File Browser 2.63.6 through 2.63.23 Share Link Exposure via File Deletion

IV. Related Vulnerabilities

Same product: filebrowser
Same vendor: filebrowser
Same weakness: CWE-400