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TI-2026-09112 Aliases CVE-2026-10595GHSA-37c2-pxv8-c2mx

Path Traversal Vulnerability in parisneo/lollms

Priority HIGH 72CWE-23Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
Information disclosure
Confidentiality · integrity · availability
High · None · None
Fix status
Fixed

Attack profile from CVSS 3.0 · CNA. Fix status from CNA. Impact type from CWE-23 and the CVSS impact.

Summary

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.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00621 50th percentileScored 2026-11-07
Fix Fixed parisneo/lollms (parisneo): 3

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
Poc
Automatable
Yes
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
parisneoparisneo/lollmsbefore 33Patch availableCNA
  • parisneo/lollms Vendorparisneo Affected before 3 Fixed in 3 Patch available CNA

Remediation

  • Fix · CNA parisneo/lollms (parisneo) Fixed in 3

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-10595
  2. 2026-10-03 Alias added: GHSA-37c2-pxv8-c2mx
  3. 2026-10-25 EPSS moved to the below the 50th percentile
  4. 2026-11-07 EPSS moved to the 50th–90th percentile

References

Other 2

  • TI-2026-00842 Improper Access Control via Weak JWT Token in parisneo/lollms CVSS 3.0CRITICAL 9.8
  • TI-2024-05059 Remote Code Execution via Path Traversal in parisneo/lollms CVSS 3.0CRITICAL 9.8
  • TI-2024-04029 Remote Code Execution via `/apply_settings` and `/execute_code` in parisneo/lollms-webui CVSS 3.0CRITICAL 9.8
  • TI-2024-04023 Remote Code Execution due to LFI in '/install_extension' in parisneo/lollms-webui CVSS 3.1CRITICAL 9.8
  • TI-2024-03798 Arbitrary Code Execution in parisneo/lollms CVSS 3.0CRITICAL 9.8
  • TI-2024-02196 Arbitrary Upload & Read via Path Traversal in parisneo/lollms-webui CVSS 3.0CRITICAL 9.6
See all 83 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences