PYSEC-2026-1586

Vulnerability from pysec - Published: 2026-07-07 16:03 - Updated: 2026-07-07 17:24
VLAI
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
8.2 (High)
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H
Impacted products
Name purl
lollms pkg:pypi/lollms
Aliases
To clipboard 

{
  "affected": [
    {
      "package": {
        "ecosystem": "PyPI",
        "name": "lollms",
        "purl": "pkg:pypi/lollms"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "2.1.0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1.1.10",
        "1.1.11",
        "1.1.12",
        "1.1.13",
        "1.1.14",
        "1.1.15",
        "1.1.16",
        "1.1.17",
        "1.1.18",
        "1.1.19",
        "1.1.20",
        "1.1.21",
        "1.1.22",
        "1.1.25",
        "1.1.26",
        "1.1.27",
        "1.1.28",
        "1.1.29",
        "1.1.3",
        "1.1.30",
        "1.1.31",
        "1.1.32",
        "1.1.33",
        "1.1.34",
        "1.1.35",
        "1.1.36",
        "1.1.37",
        "1.1.38",
        "1.1.45",
        "1.1.46",
        "1.1.47",
        "1.1.48",
        "1.1.49",
        "1.1.5",
        "1.1.50",
        "1.1.51",
        "1.1.52",
        "1.1.53",
        "1.1.55",
        "1.1.56",
        "1.1.57",
        "1.1.58",
        "1.1.59",
        "1.1.6",
        "1.1.60",
        "1.1.61",
        "1.1.62",
        "1.1.63",
        "1.1.64",
        "1.1.65",
        "1.1.66",
        "1.1.67",
        "1.1.68",
        "1.1.69",
        "1.1.7",
        "1.1.70",
        "1.1.71",
        "1.1.73",
        "1.1.74",
        "1.1.75",
        "1.1.76",
        "1.1.77",
        "1.1.78",
        "1.1.79",
        "1.1.80",
        "1.1.82",
        "1.1.83",
        "1.1.84",
        "1.1.85",
        "1.1.86",
        "1.1.9",
        "1.1.90",
        "1.1.91",
        "1.1.92",
        "1.2.0",
        "1.2.1",
        "1.2.10",
        "1.2.11",
        "1.2.12",
        "1.2.14",
        "1.2.3",
        "1.2.4",
        "1.2.6",
        "1.2.7",
        "1.2.8",
        "1.2.9",
        "2.0.0",
        "2.0.1",
        "2.0.10",
        "2.0.11",
        "2.0.12",
        "2.0.13",
        "2.0.14",
        "2.0.15",
        "2.0.16",
        "2.0.17",
        "2.0.18",
        "2.0.19",
        "2.0.2",
        "2.0.20",
        "2.0.21",
        "2.0.22",
        "2.0.23",
        "2.0.24",
        "2.0.25",
        "2.0.26",
        "2.0.27",
        "2.0.28",
        "2.0.3",
        "2.0.30",
        "2.0.31",
        "2.0.32",
        "2.0.4",
        "2.0.5",
        "2.0.6",
        "2.0.8",
        "2.0.9"
      ]
    }
  ],
  "aliases": [
    "CVE-2026-1117",
    "GHSA-82fw-ch24-j34w"
  ],
  "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\u0027s actions to affect the server\u0027s state and other clients\u0027 operations. The lack of proper access control and reliance on insecure global state management significantly impacts the availability and integrity of the service.",
  "id": "PYSEC-2026-1586",
  "modified": "2026-07-07T17:24:35.833438Z",
  "published": "2026-07-07T16:03:21.287571Z",
  "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"
    },
    {
      "type": "PACKAGE",
      "url": "https://pypi.org/project/lollms"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/advisories/GHSA-82fw-ch24-j34w"
    }
  ],
  "severity": [
    {
      "score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Lollms has an Improper Access Control vulnerability"
}


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