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CVE-2026-55498— FileRise Shared Folder Symlink Escape

Quick assessment

Affected
error311 FileRise
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.

FileRise 是一款自托管的基于 Web 的文件管理器，支持多文件上传、编辑和批量操作。在版本 3.15.0 之前，当共享文件夹启用了子文件夹浏览功能时，FileRise 的公共共享文件夹链接可能跟随共享文件夹内的符号链接（symlink），从而跳转到上传根目录下的同级目录。持有有效分享令牌但未经验证的用户，可以通过共享文件夹列表浏览、直接下载或创建 ZIP 归档等方式，访问实际共享文件夹之外的文件。 该漏洞的根本原因在于：受影响的共享文件夹路径在解析过程中会跟随符号链接，但未能将原始共享文件夹作为真实路径边界

CVSS 4.8 · Medium EPSS 0.28% · P19

Affected Version Matrix 1

VendorProduct Version RangeStatus
error311 FileRise < 3.15.0 affected
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I. Basic Information for CVE-2026-55498

Vulnerability Information
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Vulnerability Title
FileRise Shared Folder Symlink Escape
Source: CVE Program / CVE List V5
Vulnerability Description
FileRise is a self-hosted web-based file manager with multi-file upload, editing, and batch operations. Prior to 3.15.0, FileRise public shared-folder links with subfolder browsing enabled can follow a symbolic link inside the shared folder to a sibling directory under the upload root. An unauthenticated holder of a valid share token can use shared-folder listing, direct download, or ZIP creation to access files outside the folder that was actually shared. The flaw occurs because the affected shared-folder paths resolve symlinks without enforcing the original shared folder as the real-path boundary. This issue is fixed in version 3.15.0.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
在文件访问前对链接解析不恰当(链接跟随)
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
error311 FileRise < 3.15.0 -

II. Public POCs for CVE-2026-55498

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III. Intelligence Information for CVE-2026-55498

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Patches & Fixes for CVE-2026-55498 (1)

Other References for CVE-2026-55498 (2)

Same Patch Batch · error311 · 2026-10-14 · 22 CVEs total

CVE-2026-61843 8.2 HIGH FileRise: Unauthenticated File Overwrite Through Upload-Enabled Folder Shares
CVE-2026-57490 8.1 HIGH FileRise: WebDAV authentication bypasses TOTP/MFA entirely
CVE-2026-57489 8.1 HIGH FileRise: AUTH_BYPASS reverse-proxy header trust without source IP validation enables full
CVE-2026-103977 8.1 HIGH FileRise: Session-scoped TOTP rate limiting permits repeated verification attempts
CVE-2026-104108 8.1 HIGH FileRise OIDC login can bind an attacker identity to an existing local account
CVE-2026-57492 7.4 HIGH FileRise: Setup mode re-activates when users.txt becomes empty, allowing unauthenticated a
CVE-2026-61844 7.1 HIGH FileRise: Folder Metadata Filename Collisions Bypass "read_own" Isolation
CVE-2026-104109 6.8 MEDIUM FileRise: Authenticated ZIP extraction follows a pre-existing symlink and deletes files ou
CVE-2026-57493 6.8 MEDIUM FileRise: Remember-me auto-login uses stale admin role from token instead of current role
CVE-2026-104107 6.5 MEDIUM FileRise: Authenticated path traversal escapes configured storage root through inherited A
CVE-2026-104106 6.5 MEDIUM FileRise: 2FA disable and TOTP enrollment lack step-up re-authentication; enrollment activ
CVE-2026-69193 6.5 MEDIUM FileRise: Rate Limiting Bypass via Username Rotation Enables Unlimited Password Spraying
CVE-2026-57491 6.5 MEDIUM FileRise: ZIP extraction writes blocked file extensions to disk, bypassing the upload bloc
CVE-2026-104105 6.4 MEDIUM FileRise: TOTP codes are not single-use — valid 6-digit code can be replayed within its wi
CVE-2026-77427 5.9 MEDIUM FileRise: Insecure default cryptographic key fallback in manual installs
CVE-2026-103988 5.4 MEDIUM FileRise renameFolder omits destination-parent authorization
CVE-2026-69191 5.4 MEDIUM FileRise: Login Method Restriction Bypass via Direct API Access
CVE-2026-62664 5.4 MEDIUM FileRise: Authenticated path traversal in createFolder allows arbitrary directory creation
CVE-2026-104110 5.3 MEDIUM FileRise: Unauthenticated disclosure of internal folder path, client email, and upload pol
CVE-2026-69194 4.8 MEDIUM FileRise: Unsanitized footerHtml in Public Site Config

Showing top 20 of 22 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: FileRise
Same vendor: error311
Same weakness: CWE-59

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