CVE-2026-6598: Langflow Cleartext Storage of Auth Settings

# CVE-2026-6598: Langflow Cleartext Storage of Auth Settings

https://gcdradar.vercel.app/incidents/cve-2026-6598-langflow-cleartext-storage-of-auth-settings · AIR-2026-0592 · closed 2026-04-20

- Lane: Patch now
- Severity: 2 (Disclosed vulnerability)
- Fix status: Fix status unknown
- First reported: 2026-04-20
- AI role: Attack on AI
- Products: Langflow
- CVE ids: CVE-2026-6598
- CVSS: 4.3

## Summary

Langflow stored authentication settings in cleartext during project creation via its API. An exploit has been publicly disclosed for affected versions.

## What to do

No action recorded; read the sources below and the vendor's advisory.

## Latest updates

- 2026-04-20: CVE-2026-6598: A security vulnerability has been detected in langflow-ai langflow up to 1.8.3. (https://nvd.nist.gov/vuln/detail/CVE-2026-6598)
- 2026-04-20: CVE-2026-6598: Langflow: Cleartext Storage of Authentication Settings in Project Creation Endpoint (https://github.com/advisories/GHSA-9jpj-cph8-w449)

## Sources

- 2026-04-20 GitHub Advisory Database: CVE-2026-6598: Langflow: Cleartext Storage of Authentication Settings in Project Creation Endpoint https://github.com/advisories/GHSA-9jpj-cph8-w449
- 2026-04-20 NVD: CVE-2026-6598: A security vulnerability has been detected in langflow-ai langflow up to 1.8.3. https://nvd.nist.gov/vuln/detail/CVE-2026-6598

Verify against the vendor's advisory before changing production. Data CC BY-SA 4.0, https://gcdradar.vercel.app.