CVE-2026-21445: Langflow Missing Authentication on Critical API Endpoints
langflow-ai · langflow
Affected: langflow-ai · Exploitation: check available, not yet exploited
Not in CyberSIXT coverage yet: no article names this CVE. This page shows the public record.
Higher than 98% of scored CVEs
DescriptionCVE.org
Langflow is a tool for building and deploying AI-powered agents and workflows. Prior to version 1.7.0.dev45, multiple critical API endpoints in Langflow are missing authentication controls. The issue allows any unauthenticated user to access sensitive user conversation data, transaction histories, and perform destructive operations including message deletion. This affects endpoints handling personal data and system operations that should require proper authorization. Version 1.7.0.dev45 contains a patch.
Affected products1
From the CVE record. A product or version that is not listed is unknown, not unaffected.
- langflow-ai · langflow< 1.7.0.dev45
On the Atlas
Every published CVE is on the CyberSIXT Atlas, grouped by weakness, vendor and month.
- Exploitation
- Check available, not yet exploited. A public nuclei template can confirm it on a system you are authorised to test.
- CISA KEV
- Not listed
- Public check
- Langflow - Broken Access Control · nuclei template in projectdiscovery/nuclei-templates
- Vendor
- langflow-ai
- Published
- January 2026
CoverageNo articles yet
No CyberSIXT article names CVE-2026-21445 yet, so there is no coverage timeline, action brief or change log for it. Everything on this page comes from the public CVE record, CISA KEV, EPSS and the nuclei template index. Search the archive or see the CVEs in the news.