CVE-2026-1117: Lollms Lollms Has An Improper Access Vulnerability

HIGH
Advisory Identifier: GHSA-82fw-ch24-j34w
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CVSS 8.2
CWE-284
Published
Advisory Summary

CVE-2026-1117 is a HIGH (CVSS 8.2) lollms has an improper access vulnerability (CWE-284: Improper Access Control) affecting Lollms libraries in the PyPI ecosystem. The issue involves lollms has an improper access control vulnerability. Remediation is available by upgrading affected packages to version 2.1.0.

CVE-2026-1117 at a Glance

CVE Identifier CVE-2026-1117
GHSA Identifier GHSA-82fw-ch24-j34w
Severity HIGH
CVSS v3.1 Base Score 8.2
CWE Classification CWE-284: Improper Access Control
Affected Product Lollms
Package Ecosystem PyPI
Published Date
Last Updated

Security Impact

CVSS: 8.2

The security impact metrics below are parsed directly from the CVSS v3.1 vector string (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H).

Attack Vector Network (AV:N)
Attack Complexity Low (AC:L)
Privileges Required None (PR:N)
User Interaction None (UI:N)
Scope Unchanged (S:U)
Confidentiality None (C:N)
Integrity Low (I:L)
Availability High (A:H)

How to Fix CVE-2026-1117

To remediate this vulnerability, upgrade all affected Lollms dependencies to a patched release. Both direct and transitive dependencies should be checked, as frameworks or security libraries may pull in vulnerable versions transitively.

lollms fixed: 2.1.0 
pip install lollms>=2.1.0
Verify Direct and Transitive Dependencies

Run the following command in your project directory to verify that all resolved dependencies use the patched release: 

pip show lollms

How to Check if You Are Affected

To determine whether your Python environment is affected by CVE-2026-1117, inspect your installed packages using pip:

pip show lollms

Analyze the terminal output to locate any version of Lollms in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 2.1.0), your application is affected.

Note: The pip show lollms command checks currently installed packages in your active Python environment.

Technical Details

Vulnerability Mechanism & Technical Analysis

This vulnerability is classified under CWE-284: Improper Access Control, where the product does not restrict or incorrectly restricts access to a resource from an unauthorized actor. In Lollms, software state validation or input boundaries are circumvented during processing. Review the official source advisory statement below for specific affected components, classes, and reproduction details.

Source Advisory Statement

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.

CVE-2026-1117 Affected Lollms Versions

1 component(s)
Fixed Versions:
2.1.0
Product / Package Ecosystem Affected Versions Fixed Version
lollms
pypi/lollms
PyPI
< 2.1.0
2.1.0

References

NVD — CVE-2026-1117 NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-1117
Security Fix Commit FIX COMMIT
https://github.com/parisneo/lollms/commit/36a5b513dfefe9c2913bf9b618457b4fea603e3b
Lollms Source Repository REPOSITORY
https://github.com/parisneo/lollms
huntr.com/bounties/d2846a7f-0... WEB
https://huntr.com/bounties/d2846a7f-0140-4105-b1bb-5ef64ec8b829

Frequently Asked Questions

What is CVE-2026-1117?
CVE-2026-1117 is a security vulnerability in Lollms involving Lollms has an Improper Access Control vulnerability under CWE-284: Improper Access Control.
Which Lollms versions are affected?
Affected versions include releases prior to 2.1.0 across affected packages: lollms.
What version fixes CVE-2026-1117?
Upgrading to 2.1.0 (or the latest patched release for your respective branch) resolves the vulnerability.
Is lollms affected?
Yes, lollms is affected in releases prior to 2.1.0. Upgrade your dependency to 2.1.0 or later.
What is the CVSS score of CVE-2026-1117?
CVE-2026-1117 has a CVSS v3.1 base score of 8.2 (HIGH) with vector string CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H.
What CWE is associated with CVE-2026-1117?
CVE-2026-1117 is classified under CWE-284: Improper Access Control (The product does not restrict or incorrectly restricts access to a resource from an unauthorized actor.).
How can I check PyPI dependencies for CVE-2026-1117?
Run the dependency tree command: 'pip show lollms'. This command lists direct and transitive dependencies in your build configuration so you can verify if a vulnerable version is resolved.
Machine-readable OSV JSON OSV v1.5 Schema
Normalized schema output
View Raw JSON 
{
  "schema_version" : "1.4.0",
  "id" : "GHSA-82fw-ch24-j34w",
  "modified" : "2026-02-02T21:56:51Z",
  "published" : "2026-02-02T12:31:14Z",
  "aliases" : [ "CVE-2026-1117" ],
  "summary" : "Lollms has an Improper Access Control vulnerability",
  "details" : "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.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "PyPI",
      "name" : "lollms"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
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      }, {
        "fixed" : "2.1.0"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2026-1117"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/parisneo/lollms/commit/36a5b513dfefe9c2913bf9b618457b4fea603e3b"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/parisneo/lollms"
  }, {
    "type" : "WEB",
    "url" : "https://huntr.com/bounties/d2846a7f-0140-4105-b1bb-5ef64ec8b829"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-284" ],
    "severity" : "HIGH",
    "github_reviewed" : true,
    "github_reviewed_at" : "2026-02-02T21:56:51Z",
    "nvd_published_at" : "2026-02-02T10:16:06Z"
  }
}