Vulnerability · Published Feb 2, 2026 · Assigned by @huntr_ai
CVE-2026-1117Improper Access Control in parisneo/lollms
High 8.2
In plain English
A high-severity improper access control in parisneo/lollms from parisneo. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.6% (higher than 48% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Official 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 packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| PyPI | lollms | 2.1.0 | GHSA-82fw-ch24-j34w |
| PyPI | lollms | 2.1.0 | PYSEC-2026-1586 |
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| parisneo | parisneo/lollms | unspecified – before 2.0.0 |
Weakness: CWE-284 · Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H