GHSA-7HW8-6Q6R-4276中危已审查

Langflow: Logout button does not clear session

OSV 1.4.0 · github-reviewed · 修改于 2026-06-20 05:17

发布时间

2026-06-20 05:17

GitHub 审查时间

2026-06-20 05:17

NVD 发布时间

—

源文件

advisories/github-reviewed/2026/06/GHSA-7hw8-6q6r-4276/GHSA-7hw8-6q6r-4276.json

公告说明

Summary

The logout button does not clear the session. The previous user stays logged in unless another user explicitly logs in.

Details

Not in auto login mode. Hosted on localhost. access_token_lf remains present in both Local Storage and Cookies. refresh_token_lf remains present in Cookies.

Root cause: the /logout endpoint deleted the authentication cookies without matching the original httponly/samesite/secure/domain parameters, so the browser kept them; additionally the frontend did not clear the auth cookies on logout.

LANGFLOW_AUTO_LOGIN: "False"
LANGFLOW_SUPERUSER: <set>
LANGFLOW_SUPERUSER_PASSWORD: <set>
LANGFLOW_SECRET_KEY: <set>
LANGFLOW_NEW_USER_IS_ACTIVE: "False"
LANGFLOW_ENABLE_SUPERUSER_CLI: "False"

PoC

Click Logout. Hit refresh to return to previous screen.

Impact

Users on shared computers may falsely believe they have terminated their session.

Patches

Fixed in 1.7.0 (PRs #10527 and #10528). The logout endpoint now deletes the auth cookies using the same parameters they were created with, and the frontend clears the auth cookies on logout. Upgrade to 1.7.0 or later.

受影响的软件包

标识信息

别名 / CVE

CVE-2026-55423

CWE

CWE-613

软件生态

PyPI

扩展资料

暂无扩展资料。

CVSS 评分

CVSS_V3

CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

原始 OSV JSON

{
  "id": "GHSA-7hw8-6q6r-4276",
  "aliases": [
    "CVE-2026-55423"
  ],
  "details": "### Summary\nThe logout button does not clear the session. The previous user stays logged in unless another user explicitly logs in.\n\n### Details\nNot in auto login mode. Hosted on localhost. `access_token_lf` remains present in both Local Storage and Cookies. `refresh_token_lf` remains present in Cookies.\n\n**Root cause:** the `/logout` endpoint deleted the authentication cookies without matching the original `httponly`/`samesite`/`secure`/`domain` parameters, so the browser kept them; additionally the frontend did not clear the auth cookies on logout.\n\n```\nLANGFLOW_AUTO_LOGIN: \"False\"\nLANGFLOW_SUPERUSER: <set>\nLANGFLOW_SUPERUSER_PASSWORD: <set>\nLANGFLOW_SECRET_KEY: <set>\nLANGFLOW_NEW_USER_IS_ACTIVE: \"False\"\nLANGFLOW_ENABLE_SUPERUSER_CLI: \"False\"\n```\n\n### PoC\nClick Logout. Hit refresh to return to previous screen.\n\n### Impact\nUsers on shared computers may falsely believe they have terminated their session.\n\n### Patches\nFixed in **1.7.0** (PRs #10527 and #10528). The logout endpoint now deletes the auth cookies using the same parameters they were created with, and the frontend clears the auth cookies on logout. Upgrade to **1.7.0 or later**.",
  "summary": "Langflow: Logout button does not clear session",
  "affected": [
    {
      "ranges": [
        {
          "type": "ECOSYSTEM",
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "1.7.1"
            }
          ]
        }
      ],
      "package": {
        "name": "langflow",
        "ecosystem": "PyPI"
      },
      "database_specific": {
        "last_known_affected_version_range": "< 1.7.0"
      }
    }
  ],
  "modified": "2026-06-19T21:17:01Z",
  "severity": [
    {
      "type": "CVSS_V3",
      "score": "CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N"
    }
  ],
  "published": "2026-06-19T21:17:01Z",
  "references": [
    {
      "url": "https://github.com/langflow-ai/langflow/security/advisories/GHSA-7hw8-6q6r-4276",
      "type": "WEB"
    },
    {
      "url": "https://github.com/langflow-ai/langflow/pull/10527",
      "type": "WEB"
    },
    {
      "url": "https://github.com/langflow-ai/langflow/pull/10528",
      "type": "WEB"
    },
    {
      "url": "https://github.com/langflow-ai/langflow",
      "type": "PACKAGE"
    }
  ],
  "schema_version": "1.4.0",
  "database_specific": {
    "cwe_ids": [
      "CWE-613"
    ],
    "severity": "MODERATE",
    "github_reviewed": true,
    "nvd_published_at": null,
    "github_reviewed_at": "2026-06-19T21:17:01Z"
  }
}