Vulnerability in Langflow-Ai Langflow
CVE-2026-6598
A security vulnerability has been detected in langflow-ai langflow up to 1.8.3. The affected element is the function create_project/encrypt_auth_settings of the file src/backend/base/Langflow/api/v1/projects.py of the component Project Creation Endpoint. Such manipulation of the argument auth_settings leads to cleartext storage in a file or on disk. The attack can be launched remotely. The exploit has been disclosed publicly and may be used. The vendor was contacted early about this disclosure but did not respond in any way.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 4.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N.
EPSS exploit prediction
EPSS: 0.002 (13.9th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 14th percentile — 13.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.002 · newest: 0.002 · change: +0.001
Affected products
- Langflow-Ai Langflow — versions 1.8.0, 1.8.1, 1.8.2
Weakness classification (CWE)
References
- vuldb.com/vuln/358233 (technical-description, vdb-entry)
- vuldb.com/vuln/358233/cti (signature, permissions-required)
- vuldb.com/submit/791921 (third-party-advisory)
- gist.github.com/chenhouser2025/77adb3486c06c635ae4b09a3eaf90213 (exploit)
Frequently asked questions
- What is CVE-2026-6598?
- CVE-2026-6598 is a medium-severity vulnerability in Langflow-Ai Langflow, classified under Cleartext Storage of Sensitive Information. CVSS score: 4.3/10. Published 2026-04-20.
- How severe is CVE-2026-6598?
- Medium severity. CVSS v3 base score is 4.3 out of 10.