What’s Vulnerable › Vulnerabilities

CVE-2026-61844: FileRise: Folder Metadata Filename Collisions Bypass "read_own" Isolation

• Severity: high (CVSS 7.1 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.3% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-10-14 · updated 2026-10-15
• Weakness: CWE-706

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.

Affected products

• error311 FileRise: before 3.18.0

References

• https://github.com/error311/FileRise/commit/9ed1a38f00918849dbda30f54291d1451ed80d11
• https://github.com/error311/FileRise/releases/tag/v3.18.0
• https://github.com/error311/FileRise/security/advisories/GHSA-qpm8-pgmq-wxmh
• https://github.com/error311/FileRise/security/advisories/GHSA-qpm8-pgmq-wxmh

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