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GHSA-9JPJ-CPH8-W449

Vulnerability from github – Published: 2026-04-20 06:31 – Updated: 2026-04-24 20:35
VLAI
Summary
Langflow: Cleartext Storage of Authentication Settings in Project Creation Endpoint
Details

A security vulnerability has been detected in langflow-ai langflow up to 1.8.3. The affected element is the function create_project/encrypt_auth_settings of the file src/backend/base/Langflow/api/v1/projects.py of the component Project Creation Endpoint. Such manipulation of the argument auth_settings leads to cleartext storage in a file or on disk. The attack can be launched remotely. The exploit has been disclosed publicly and may be used. The vendor was contacted early about this disclosure but did not respond in any way.

Severity
4.3 (Medium)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
2.1 (Low)
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:P
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{
  "affected": [
    {
      "package": {
        "ecosystem": "PyPI",
        "name": "langflow"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "1.9.1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2026-6598"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-312",
      "CWE-313"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2026-04-24T20:35:01Z",
    "nvd_published_at": "2026-04-20T04:16:52Z",
    "severity": "LOW"
  },
  "details": "A security vulnerability has been detected in langflow-ai langflow up to 1.8.3. The affected element is the function create_project/encrypt_auth_settings of the file src/backend/base/Langflow/api/v1/projects.py of the component Project Creation Endpoint. Such manipulation of the argument auth_settings leads to cleartext storage in a file or on disk. The attack can be launched remotely. The exploit has been disclosed publicly and may be used. The vendor was contacted early about this disclosure but did not respond in any way.",
  "id": "GHSA-9jpj-cph8-w449",
  "modified": "2026-04-24T20:35:01Z",
  "published": "2026-04-20T06:31:27Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-6598"
    },
    {
      "type": "WEB",
      "url": "https://github.com/langflow-ai/langflow/commit/45325f6376309a91f5017fa033a96c09c7e295e3"
    },
    {
      "type": "WEB",
      "url": "https://gist.github.com/chenhouser2025/77adb3486c06c635ae4b09a3eaf90213"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/langflow-ai/langflow"
    },
    {
      "type": "WEB",
      "url": "https://vuldb.com/submit/791921"
    },
    {
      "type": "WEB",
      "url": "https://vuldb.com/vuln/358233"
    },
    {
      "type": "WEB",
      "url": "https://vuldb.com/vuln/358233/cti"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N",
      "type": "CVSS_V3"
    },
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:P",
      "type": "CVSS_V4"
    }
  ],
  "summary": "Langflow: Cleartext Storage of Authentication Settings in Project Creation Endpoint"
}



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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

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Nomenclature

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  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


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