What is CVE-2026-33484?

CVE-2026-33484 is a high-severity vulnerability in Langflow-ai Langflow, classified under Improper Access Control. CVSS score: 7.5/10. Published 2026-03-24.

How severe is CVE-2026-33484?

High severity. CVSS v3 base score is 7.5 out of 10.

Auth bypass in Langflow-ai Langflow

CVE-2026-33484

Langflow is a tool for building and deploying AI-powered agents and workflows. In versions 1.0.0 through 1.8.1, the `/api/v1/files/images/{flow_id}/{file_name}` endpoint serves image files without any authentication or ownership check. Any…

EPSS: 0.001 (15.9th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N.

Affected products

Langflow-ai Langflow — versions >= 1.0.0, < 1.9.0

Weakness classification (CWE)

CWE-284 — Improper Access Control
CWE-639 — Authorization Bypass Through User-Controlled Key
CWE-862 — Missing Authorization

References

https://github.com/langflow-ai/langflow/security/advisories/GHSA-7grx-3xcx-2xv5 (x_refsource_CONFIRM)

Frequently asked questions

What is CVE-2026-33484?: CVE-2026-33484 is a high-severity vulnerability in Langflow-ai Langflow, classified under Improper Access Control. CVSS score: 7.5/10. Published 2026-03-24.
How severe is CVE-2026-33484?: High severity. CVSS v3 base score is 7.5 out of 10.