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CVE-2026-1117

Improper Access Control in parisneo/lollms

Published: Feb 2, 2026Updated: Apr 15, 2026 Sources: CVE List NVD GHSACWE-284

Description

A vulnerability in the `lollms_generation_events.py` component of parisneo/lollms version 5.9.0 allows unauthenticated access to sensitive Socket.IO events. The `add_events` function registers event handlers such as `generate_text`, `cancel_generation`, `generate_msg`, and `generate_msg_from` without implementing authentication or authorization checks. This allows unauthenticated clients to execute resource-intensive or state-altering operations, leading to potential denial of service, state corruption, and race conditions. Additionally, the use of global flags (`lollmsElfServer.busy`, `lollmsElfServer.cancel_gen`) for state management in a multi-client environment introduces further vulnerabilities, enabling one client's actions to affect the server's state and other clients' operations. The lack of proper access control and reliance on insecure global state management significantly impacts the availability and integrity of the service.

CVSS Vector Breakdown

AV:NAC:LPR:NUI:NS:UC:NI:LA:H
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:NPrivileges Required
None
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:NConfidentiality
None
I:LIntegrity
Low
A:HAvailability
High

Weaknesses

Affected Products

parisneooss-projectAI / MLaka lollms-webui, lollms-web ui, lollms
pypipackage-ecosystemOSS Libraries

Exploitability

Official Patch Available

References

and 1 more references View all →

Timeline

Published
Feb 2, 2026
Last Updated
Apr 15, 2026

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