Vulnerability · Published Oct 14, 2026 · Assigned by GitHub_M

CVE-2026-55498FileRise Shared Folder Symlink Escape

Medium 4.8

In plain English

A medium-severity security flaw in FileRise from error311. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 26% of all known vulnerabilities).

Severity (CVSS 3.1)4.8Medium

Exploit odds (30 days)0.3%top 73.6% of all CVEs

Exploited in the wildNo reportsCISA SSVC: poc

Attack toolingNoneno public tooling known

Official 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.

Affected products (as reported)

Vendor	Product	Versions
error311	FileRise	< 3.15.0

Weakness: CWE-59 · Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N

References

https://github.com/error311/FileRise/security/advisories/GHSA-83rw-5ffw-p798 x_refsource_CONFIRM
https://github.com/error311/FileRise/commit/f24af3f2a25cec092d19de93acbc215e74659a22 x_refsource_MISC
https://github.com/error311/FileRise/releases/tag/v3.15.0 x_refsource_MISC