CVE-2026-10595: Parisneo Parisneo/lollms

High severity, CVSS 7.5. EPSS: 0.7% chance of exploitation in the next 30 days.

A path traversal vulnerability exists in parisneo/lollms version 2.1.0, specifically in the SPA catch-all route implemented in `backend/routers/ui.py`. The vulnerability arises from the improper handling of user-controlled path input, which is directly joined into a filesystem path without sanitization or containment checks. URL-encoded dot-dot sequences (`%2e%2e`) bypass Starlette's built-in path normalization and are resolved by Python's `pathlib`, allowing an unauthenticated attacker to read arbitrary files on the server. This issue has been resolved in version 3.

Affected products

• Parisneo Parisneo/lollms: before 3 (fixed in 3)

Published 2026-08-09. Last modified 2026-09-03.