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OpenAdvisories
High · 8.2 CVE-2026-1117 EUVD-2026-5096GHSA-82fw-ch24-j34wPYSEC-2026-1586

Improper Access Control in parisneo/lollms

Published Feb 2, 2026 · Updated Feb 2, 2026 · Assigned by @huntr_ai

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.

Affected products

VendorProductAffectedFixed
parisneo parisneo/lollms unspecified – < 2.0.0 2.0.0

Affected packages

EcosystemPackageAffectedFixedRecord
PyPI lollms < 2.1.0 2.1.0 GHSA-82fw-ch24-j34w

References