CVE-2026-61844— FileRise: Folder Metadata Filename Collisions Bypass "read_own" Isolation
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 is a self-hosted web-based file manager with multi-file upload, editing, and batch operations. Prior to 3.18.0, FileRise flattens logical folder paths into metadata filenames by replacing separators and spaces with hyphens, so distinct folders such as
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I. Basic Information for CVE-2026-61844
Vulnerability Information
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Vulnerability Title
FileRise: Folder Metadata Filename Collisions Bypass "read_own" Isolation
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 3.18.0, FileRise flattens logical folder paths into metadata filenames by replacing separators and spaces with hyphens, so distinct folders such as team/docs and team-docs can share one metadata file. Because uploader metadata is used to authorize read_own and ownership-restricted edits, a low-privileged user who controls one colliding folder, knows the target basename, and already has read_own access to the target folder can alter the metadata used by that folder, make the victim file appear attacker-owned, read it, and modify it when edit-own permission is also available. This issue is fixed in version 3.18.0.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:L
Source: CVE Program / CVE List V5
Vulnerability Type
使用不正确的解析名称或索引
Source: CVE Program / CVE List V5
Affected Products
II. Public POCs for CVE-2026-61844
| # | POC Description | Source Link | Shenlong Link |
|---|
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Other References for CVE-2026-61844 (2)
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Release v3.18.0 · error311/FileRise · GitHub x_refsource_MISC
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-2026-57489 | 8.1 HIGH | FileRise: AUTH_BYPASS reverse-proxy header trust without source IP validation enables full |
| CVE-2026-57490 | 8.1 HIGH | FileRise: WebDAV authentication bypasses TOTP/MFA entirely |
| CVE-2026-104108 | 8.1 HIGH | FileRise OIDC login can bind an attacker identity to an existing local account |
| CVE-2026-103977 | 8.1 HIGH | FileRise: Session-scoped TOTP rate limiting permits repeated verification attempts |
| CVE-2026-57492 | 7.4 HIGH | FileRise: Setup mode re-activates when users.txt becomes empty, allowing unauthenticated a |
| 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-2026-57491 | 6.5 MEDIUM | FileRise: ZIP extraction writes blocked file extensions to disk, bypassing the upload bloc |
| CVE-2026-69193 | 6.5 MEDIUM | FileRise: Rate Limiting Bypass via Username Rotation Enables Unlimited Password Spraying |
| 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 |
| CVE-2026-55498 | 4.8 MEDIUM | FileRise Shared Folder Symlink Escape |
Showing top 20 of 22 CVEs. View all on vendor page → →
IV. Related Vulnerabilities
Same product: FileRise
-
CVE-2026-104109
FileRise: Authenticated ZIP extraction follows a pre-existin -
CVE-2026-104107
FileRise: Authenticated path traversal escapes configured st -
CVE-2026-104110
FileRise: Unauthenticated disclosure of internal folder path -
CVE-2026-104108
FileRise OIDC login can bind an attacker identity to an exis -
CVE-2026-103977
FileRise: Session-scoped TOTP rate limiting permits repeated
Same vendor: error311
-
CVE-2026-104109
FileRise: Authenticated ZIP extraction follows a pre-existin -
CVE-2026-104107
FileRise: Authenticated path traversal escapes configured st -
CVE-2026-104110
FileRise: Unauthenticated disclosure of internal folder path -
CVE-2026-104108
FileRise OIDC login can bind an attacker identity to an exis -
CVE-2026-103977
FileRise: Session-scoped TOTP rate limiting permits repeated
V. Comments for CVE-2026-61844
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