Auth bypass in Langflow
CVE-2026-5025
The '/logs' and '/logs-stream' endpoints in the log router allow any authenticated user to read the full application log buffer. These endpoints only require basic authentication ('get_current_active_user') without any privilege checks (e.g., 'is_superuser').
Vulnerability class: Broken Access Control
EPSS: 0.002 (15.7th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N.
Affected products
- Langflow
- Langflow-ai Langflow — versions 0
Weakness classification (CWE)
References
- vulnreport@tenable.com (Vendor Advisory)
Frequently asked questions
- What is CVE-2026-5025?
- CVE-2026-5025 is a medium-severity vulnerability in Langflow, classified under Missing Authorization. CVSS score: 6.5/10. Published 2026-03-27.
- How severe is CVE-2026-5025?
- Medium severity. CVSS v3 base score is 6.5 out of 10.